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VIRG IN IA GEOLOG ICAL SURVEY

UNIVER SITY OF VIR G INIA

THOMA S LEONARD W ATSON ,P H . D .

D IRECTOR

Bu l let in No . VIII

Bien n ial Report

ON THE

M ineral Produc t ion of Virgin iaDuring the Calendar Years

1 9 1 ] and 1 9 1 2

THOM AS L . W ATSON

W ITH CHAPTE RS ON

Z ircon iferous Sand stone Near

A sh land , V irg in ia

THOM A S L . W ATSON AND FR ANK L . HE SS

A ND

Geology of the Sa lt and Gyp sum De

pos its of Southw estern V irg in ia

GEORGE W . STOSB

STATE GEOLOGICAL COMM ISSION

W ILLIAM HODGES MANN,Chai rman ,

Governor of Vi rgin ia.

E . A . ALDERMAN,

P res i dent of the Uni versi ty of Vi rgi nia.

J . D . EGGLESTON,

Pres ident of the Vi rgi ni a Polytechni c Insti tute.

E . W . NICHOLS,

Superi ntenden t of the Vi rgini a M i li tary Insti tute.

G. P . JOHNSON,

General Manager of the O. cfi 0 . Rai lway.

THOMAS LEONARD WATSON,

D irector of the Survey .

CONTENTS

BIENN IAL REP ORT ON THE M INERAL P RODUCTION OF V IR G IN IA DURING THE

CALENDAR Y EARS 1 9 1 1 AND 1 9 1 2 . By Thomas L. W a tson .

I l lu str at ion sInt rodu ct ionI ro n o re s and p ig i ro nMangan ese o r esGo ld and s i lve rCoppe rLe ad and z in c

C lays and clay p r oducts

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o

o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Cru shed ston eFu rnace flux

Ab r a s ive m at e r ia l sMi l l sto n es ( buh r sto ne s )

S i l ica

Fe ld spa rA sb esto sTa lc and soap stoneB a ryt e sGyp sumSalt

M in eral pa intsMar lP yr ite and py rrh o ti teAr s en i cRut i leM ine ra l w aters

ZIR CONIFEROUS SAND STONE NEAR A SHLAND,VIRGINLA. By Thomas L. W at so n

and F r ank L. He ss.

Int rod uct i onGen er a l geology o f the area .

D i st r ibut ion and o ccu r rence o f the sand sto n e

CONTENTS .

TestsCha racte r o f the s epa rat ed z i rcon c rysta l sAsso c i at ed m inera l sMi c ro scop ica l p et rog'raphy

Zi rco n

Cem en tGen es i sEc on om i c aspect sUse s

GEOLOGY OF THE SALT A ND GYPSUM DEPOSITS OF SOUTHW ESTERN VIRG IN IA .

By Geo rge W . Stose.

Locat i onTopographyGeo logySt rat igraphyStructu re

Sa l t and gyp sum ind u st r i es

P r esen t d evelopm en t . .

i

Gyp sumP r esen t d eve lopm en tD epo s i t

-

S n o t at p res en t u t i l izedOr igin Of the d epo s its

Fo rm e r v i ew sOb ser ved r elat io n sConc lu s i on s

Summ a ryInd ex

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

ILLUSTRATIONS

FACINGMI CROPHOTOGRAPHS OF ZIRCON SEPARATED FROM SANDSTONEFig. 1 . Zi r co n sepa rat ed f rom sand sto n e , 3 m i l es w es t o f AshlandFig. 2 . Zi rco n sep arat ed from sand ston e

,3 m i l es w est o f Ashland

M ICROPHOTOGRAPH S OF ZIRCONIFEROU S SANDSTONEFig . 1 . Th in sect io n o f Z i rco n i fe r o u s sand ston e, 3 m il es w est o f

AshlandFig . 2 . Th in sect ion o f z i rco n - b ea r ing sand st on e

, 3 m i l es w est o fAshland

FIGURE1 . Map o f Vi rgi n ia show ing locat i on o f slate be lt s2 . Geo logi ca l map Of a pa rt o f m idd le eas te rn Vi rgi n ia , show ing lo ca

t ion o f Zi r con i fe ro u s sand ston e a rea w e st o f Ashland , Hano ve r

Gene ra l ized ea st -w e st sect ion ac ro s s the fa l l - l ine nea r Ashland,

i l lust rat ing the o ccu r rence o f z i rcon —b ea r ing sand sto neInd ex map of so u thw este rn Vi rgin i a show ing locat ion o f sa lt and

gypsum d epo s itsGeo logi c map o f Ho l sto n Va l ley in the v i c in i ty o f Sa ltv i l l eStructu r e sect ion s ac ro ss Ho l sto n Va l leyStru ctu re sect i on s ac ro ss Ho l sto nSect i on o f the fau lted ro ck s i n the c l i ff so uthw est o f Maccrady

P AGE

LETTER OF TRANSM ITTAL

VIRGINIA GEOLOGICAL SURVEY,

UNIVERSITY OF VIRGINIA,

CHARLOTTESVILLE,October 1 5

,1 9 1 3 .

To Hi s Excel lency, Hon . Wm . Hodges Mann,Governor of Vi rgi n ia, and

Chai rman of the State Geologi cal Commi ss i on :

SIR : —I have the honor to transm it herew ith for publ i cation,as

Bullet in No. VIII of the Virginia Geological Survey Series of Reports,

a B ienn ial Report on the Mineral P roduct ion of Virginia during the

C alendar Y ears 1 9 1 1 and 1 9 1 2,by Thomas L . Watson

,w ith chapters on

“Zirconif erous Sandstone Near A shland

,Virginia

,

$ by Thomas L . Watsonand Frank L . Hess, and Geology of the Salt and Gyp sum Deposits of

Southwestern Virginia,

$ by George W . Stose.

Respectfully subm itted,

THOMAS L . WATSON,

Di rector.

BIENNIAL REPORT ON THE M INERAL PRODUCTION

OF VIRGINIA DURING THE CALENDAR

YEARS 1 9 1 1 AND 1 9 1 2

BY THOMAS L . W ATSON .

INTRODUCTION

Thi s bulletin includes ( 1 ) a di scuss ion of the m ineral production of

Virginia for the calendar years 1 9 1 1 and 1 9 1 2, ( 2 ) a description of the

occurrence of Zirconiferous sandstone near A shland, and ( 3 ) a summary

of the geology of the salt and gypsum deposi ts of southwest Virginia . The

descr ipt ion of surface features of the State,given in Bullet ins LA and VI

of the Survey,has been om itted in this report .

The statisti cs of m ineral producti on in V irginia for the calendar years

1 9 1 1 and 1 9 1 2 were collected by the V irginia Geo logical Survey in

cooperat ion w ith the Unite d State s Geological Survey . The total number

of product ive operati ons for the two years was large and_

included a

variety of subjects, as indi cated in the tota ls below of annual production .

The total value Of the m ineral industry in 1 9 1 1 amounted to

and in 1 9 1 2,

d istr ibuted as shown in the table

on page 2 .

With but few exception s the return s ind icate substantial ga ins in the

products m ined and quarried in the State . The total aggregate value of

the m ineral industry in 1 9 1 2 Showed an increase of over that

of 1 9 1 1 . The most noti ceable increase was that of coal,and the mos t

marked decrease was in iron ores .

The m ineral products m ined and quarried in V irginia in and

1 9 1 2 are d iscussed in th is report in the follow ing order : Iron ore s,

manganese ores, go ld and s i lver, copper, lead and z inc, t in, coal and coke,clay and clay products, l ime and cement , sand and gravel, stone (granite,l imestone

,sandstone

,sl ate

,crushed stone

,and furnace flux ) , abras ives

(m illstone s ) , s il ica ( d iatomaceous earth ) , mi ca, feldspar, asbestos, talc and

soapstone, bartyes, gypsum,

salt,m ineral pa ints

,marl

,pyr ite and pyrrhotite

,

arsenic,rutile

,and m ineral waters .

2 M INERAL PRODUCTION OF VIRGINIA .

M i neral Producti on of Vi rgi n i a i n 1 9 1 1 .

P roduct

C lay p roduct s

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Grani teIron oresIron, p i gLeadLimeL imestoneManganese oresM i l lstonesM inera l watersP y ri teS and and grave lS and s toneS i lverS lateTa lc and s o ap s toneZ inc ( spelter )Other products a

Un i t of Me asurement Quant i ty

Short tonsShort tonsP ound sF ine ounces

0 0 0 0 0 0 0 0 0 0 0 0 0

O O O O O O O O O O O O O

0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0

o o o o o o o o o o o o o o o

0 0 0 0 0 0 0 0 0 0 0 0

F ine ouncesSquaresShort tonsShort tons

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

V a lue

42061 1

1 1

aIncludes asb esto s, bartyes , cemen t ( P o rt land ) , feld spa r , fe r ro - a l loys , gyp sum ,

d iatom aceou s ea rth ,mangan i ferou s o re , m etal l i c p a in t s, m i ca , o che r , and sa lt .

M i neral P roducti on of Vi rginia i n 1 9 1 2 .

P roduct Uni t of Me asurement Quant i t y V alue

Clay p roduct sCo a l Short tons

Coke Short tonsGrani teIron ores Long tonsIron, p ig Long t onsLime Short tonsL imestoneManganese ore Long tonsMet al s ( go ld, s i lver, copper,le ad , and z inc )M i l lstonesMinera l watersP y r i teS and s toneS and and gravelS lateTa lc and so ap s toneOther productsa

To t a l

aInc lud es ba ryte s,b r iqu ets

'

( fuel ) , P o rtland cem ent , feld spa r, ferrO- a l loy s,gem s

and p r ec i ou s stones, gyp sum , d iatom aceou s ea rth , m angan i fe ro u s o re , oche r , m eta l l icpa int , rut i l e , and sa lt .

IRON ORES AND P IG IRON . 3

IRON ORES AND PIG IRON.

The production of iron ores in Virginia in 1 9 1 1 and 1 9 1 2,shows a

decided fall ing off,both in quantity and value

,from that of the two

prev ious years,1 909 and 1 9 1 0. The production in 1 9 1 2 was the lowest of

any s ingle year dur ing the last fi ve- yea r per iod . It was long

tons,valued at as compared w ith long tons

,valued at

in 1 9 1 1,a decrea se of long tons in quantity and

in value .

The 1 9 1 1 producti on of iron ores in the State represented the output

from forty—two m ines d istr ibuted among fourteen producers operating in

the same number of counties a s aga inst twenty —nine m ines

d istributed among e ight producers operat ing in ten count ies in 1 9 1 2 .

The counties producing iron ore in Virginia during 1 9 1 1 were :

A lleghany,Augusta

,Bedford

,Botetourt

, .C arroll

,Cra ig

, Grayson, Lee ,P age

,P i ttsylvan ia,

P ulask i,Roanoke

,Rockbridge

,and Wythe . Those

producing in 1 9 1 2 were : A lleghany,Bedford

,Botetourt

,C ra ig

,Lee ,

Pul aski,Roanoke

,Rockbr idge

,Warren

,and Wythe .

There i s given in the table below the total product ion of iron ore in

V i rginia,by var ietie s

,from 1 908 to 1 9 1 2

,inclus ive . It w ill be observed

that brown hemat ite i s vastly the mo st important var iety,amounting at

pre sent to per cent of the total production . Red hemat ite is next inorder of importance

,amounting to per cent of the total production

in 1 9 1 2 . The production of magnetite in 1 9 1 1 was small ; there be ing

only one producer . There was no reported production of magnet ite in 1 9 1 2 .

Producti on of Iron Ore i n Vi rgini a, by vari eti es, 1 908 - 1 9 1 2,i n long tons .

Red hemat i te To t al 5 To t a lY e ar B rown h emati te l and magnet i te quant i ty v a lue

1 908

1 909

1 9 1 0

1 91 1

1 9 1 2 I

The average pr ice per long ton of the d i fi erent var ietie s of iron ore

produced in V irginia dur ing 1 9 1 2 follows : Brown hemat ite as

aga inst in 1 9 1 1 and in 1 9 1 0 ; red hemat ite as aga inst

in 1 9 1 1 and in 1 9 1 0 ; and magnetite being the same

as the average value per ton of magnetite in 1 9 1 0 and 1 9 1 1 . These pr ices

represent the value of the ore at the mouth of the m ine,and are taken

directly from the repl ies of the producers .

4 MINERAL PRODUCTION OF VIRGINIA .

Owing to the fact that there were less than three producers in most

of the producing counties of iron ores dur ing 1 9 1 2,the production by

counties can not be given . Named in the order of product ion the count ies

were : Botetourt, Wythe , Cra ig, A lleghany, P ul ask i, Lee; Roanoke, Bedford,Rockbridge

,and Warren .

On December one furnace was bu ilding in Virginia,which

will use mineral fuel ; one was rebui ld ing ; and in add ition one cokefurnace was partly erected .

The production of p ig iron in V i rginia during 1 9 1 2 amounted to

long tons,valued at as compared w ith long

tons,valued at in 1 9 1 1

,and long tons

,valued at

in 1 9 1 0.

There is given in the table below the production of p ig iron in Virginia

for the yea rs 1 905 to 1 9 1 2,inclus ive .

Producti on of P i g Iron i n Vi rgi ni a, by years , 1 905- 1 9 1 2 .

Y e ar Value

1 9051 906

1 907

1 908

1 909

1 9 1 0

1 9 1 1

1 91 2

aEst imated .

bBi rk i nb ine, J . P e r son al c omm un icat ion .

CP arker, E . W . P e r sona l commun i cat ion .

LI ST OF IRON ORE PRODUCERS .

OP ERATOR BIINE

A l l eghany O re I ron Co .

B arr O re 8: I ron Co rporati onBoone 's Path l ron C 0

C rescen t I ron O re CoI vanhoe Furnace CoLongda le I ron CO .

Lowmoo r I ron CO . of V i rgin ia

O ri skany O re I ron Corporati on LesseesA l leghany O re I ron

Pa in t Bank O re COPrincess Furnace Co

Pu lask i I ron Co Pu lask i

OFF I CEI ron GateP i ttsvi l l eB a ltimore , Md .

New York , N . Y.

Pi ttsburgh , Pa .

Longda leLowmoor

D ix i e , O r i skanyB arrRose Hi l l StationC rescentBa i l ey C rockett, Fri es ,Gregory , I vanhoe

C i rc le , Longda l eDo l ly Ann , Fenw i ck ,Horse Mounta in , Jordan

MANGANESE ORES . D

OP ERATOR OFF I CE M INE

S e ibe l , H . J . , Jr Happy C reek

V i rgin ia I ron Coa l Cok e Co Roanoke

West End Furnace Co RoanokeWorre l l , N . J Sy lvatusZ inns I ron M in ing CO Wash ington , Pa .

MANGANESE ORES.

Virginia has always been the pr incipal producer of manganese ores

in the United States . The figures of production in 1 9 1 2 were 1 537

long tons,valued at as compared wi th long tons, valued at

in 1 9 1 1 . The figures represent a small increase in 1 9 1 1 over that

of 1 9 1 0,but a decrease in 1 9 1 2 . Notw ithstand ing th is decrease V irginia ,

as heretofore,exceeded in output all other states comb ined .

In add ition to the figures given above,

long'

tons of manganese

ore were reported as stock on hand at the cl ose of 1 9 1 1 , and 4 1 0 long tonsat the close of 1 9 1 2 .

There were 6 producers in 1 9 1 1,and 5 in 1 9 1 2 . The follow ing 5

counties contributed to the 1 9 1 1 production : Augusta,Campbell

,Rock

bridge,Rockingham

,and Warren . In 1 9 1 2 the producing count ies were

Augusta,C ampbell

,Rockbr idge

,and Rockingham .

There are given in the table below the figures of production and value

of manganese ores in V irginia from 1 908- 1 9 1 2,inclusive .

P roducti on Ores in Vi rgini a,1 908—1 9 1 2 .

I A verage v a lueY e ar per ton

aIn add i t i on,2 74 l ong t on s o f m angan i fer o u s i ron o r e w er e so ld .

bIncludes smal l p roduct ion o f m angan i fe ro u s o re.

6 MINERAL PRODUCTION OF VIRGINIA .

Greater interest and act iv ity were mani f ested in manganese m ining

in V irginia dur ing 1 9 1 2 than for several years past . The P iedmont

Manganese Corporation, Operating in Campbell County, and the P ittsburghManganese Company

,operating near Elkton

,were

engaged chiefly in

develop ing the ir m ines preparatory for steady product ions .

The production of manganiferous iron ores in 1 9 1 2 is included under

Other P roducts, s ince it came from only two producers .

LI ST OF MANGANE SE PRODUCERS .

OP ERATOR OFF IC ECox , Char les W . , A ss ignee , Henry WPoor Co Cr imora

Evington Manganese CO Ev ingtonLucas , H . Leesv i l l e\Ieta l Mfg .

L

.Co ( Succeeded by Niess WanerCO E lktonNi ess “aner Co E lktonP i edmont Manganese Corporati on o fV i rg in ia Lynchburg 1 0

b

m i les east of Lynchurg

S chu ltz , F . W Ba ltimore . Md . M idva leS ei be l . H J Jr Prop . , and L . G . Lackey ,Supt . Happy C reek and Ph i la

de lph ia , Pa . Happy C reekShenandoah O re Co Inc Stuarts Draft St l

fi arts

)Draft ( 6 m i l es

rom

GOLD AND SILVER .

The production of precious metals,gold and 8 1 l \ er in V i rginia during

the vears 1 9 1 1 and 1 9 1 2 , was variable , as ind icated in the follow ing

figures : Gold in 1 9 1 1 amounted to fine ounces, valued at

as compared w ith fine ounces,valued at $2 1 8 in 1 9 1 2 a very marked

decrea se ; s il ver 2 1 fine ounces,va lued at $ 1 1 in 1 9 1 1 . aga in st 982 fine

ounces,valued at. $604 , in 1 9 1 2 .

In 1 9 1 1,the gold and s ilver produced in V irginia was fine

ounces in quanti tv and in value more than in 1 9 1 0. Of the gold

produced fine ounces were derived from placers and from

si l i ceous ores : of the s ilver produced 7 fine ounces came from deep m ines

and 1 4 fine ounces from s il i ceous ores . Of the 1 3 properties producing,5 were placers . A ccord ing to McC

askev,

ton s of gold quartz ores

were treated with an average extraction value of per ton .

In 1 9 1 2,the gold production was der ived ent irely from s ili ceous ores .

A ccord ing to McCaskev 4 5 tons of Virginia sil iceous ores were treated

w ith an average precious metal recovery of per ton . The silverproduct ion for the same y ear was der ived from short tons of copper

ores . The 1 9 1 2 production Of precious metals in the State was derivedfrom Fauquier

, Goochland , and Prince Will iam counties . NO product ion

from placer m ining in - the State was reported in 1 9 1 2 .

COPPER . 7

In Hal i fax County development work was in progress at the P oole

gold m ine and the erection of a stamp m ill was contemplated .

In Spottsylvan i a County, the Holl aday m ine of m ixed sulphides of

lead,z inc

,and iron w ith copper

,and y ield ing small values in gol d and

s i lver,has been opened to a depth of 1 50 feet . The ore body

,carrying

large values in lead and z inc,has a w idth up to 20 feet and for the depth

opened i s a most encouraging prospect . The country rock is sch ist . In

add ition to the Shaft some open - p it prospect ing has been done,and in

1 9 1 2 d iamond dri ll ing was in progress . Development work was also underway during 1 9 1 2 by John M . Holladay and Son on the adjoining property,known as the Gr indstone

,whi ch “

was worked for gold many years ago .

The reporta just issued by the V irginia Geological Survey on the gold

depos its of the James R iver Bas in, includ ing the count ies of Buckingham,

Fluvanna,Goochland

,and Cumberland

,should rev ive interest in gold

m ining in that section of the State .

The following table,taken from M ineral Resource s of the United States

for 1 9 1 2,shows the production of gold

,si lver

,copper

,lead

,and z inc in

Vi rginia for the years 1 905 to 1 9 1 2,inclus ive .

Tonnage of ore treated and mi ne producti on of meta ls i n Vi rgi n i a,

1 905

Ore so ldor treated Go ld 8 S i lver 8 Copper LeadSh ort F i ne

tons ounces Poun d s Pound s Pound s77

250

22 1

236

1 28

2 1

982

— 96 1

nInc ludes p lacer go ld and si lver .

COPPER .

The producti on of copper in V irginia in 1 9 1 1 was pounds,

valued at and in 1 9 1 2,

pounds,valued at an

increase of pounds in quant ity and in value . The production

in 1 9 1 2 was der ived from short ton s'

of copper ores and from m ine

aTaber, Steph en Geo logy o f th e Go ld B el t in th e Jam e s R iver B as i n Vi rgin ia ,Va . Geo l . Su rvey, Bu l l . VI I , 1 9 1 3 , 2 7 1 page s

8 MINERAL PRODUCTION OF VIRGINIA .

waters of the pyrite mines in Lou isa and P r ince Wi ll iam counties . There

was no production of copper in 1 9 1 2 reported from the m ines of the

Virgil ina d istri ct in Hal if ax County . Annual statisti cs of copper pro

duction in Virginia for the years 1 905 to 1 9 1 2 ; inclus ive , are given in

the table on page 7 .

LEAD AND ZINC.

There was an important product ion of both lead and z inc in Virginia

in 1 9 1 1 and 1 9 1 2,but there was a marked decrease in both in 1 9 1 2 from

that of 1 9 1 1 . The figures are,accord ing to McCaskey : Lead pounds

,

valued at in 1 9 1 1,aga inst pounds

,valued at in

1 9 1 2,a decrease of pounds in quant ity and in value ;

z inc pounds (figured as spelter ) , valued at in 1 9 1 1 ,

as compared w ith pounds,valued at in 1 9 1 2

,a decrease of

pounds in quant ity and in value .

The Aust inv ille,Bertha

,and Little Wythe m ines In Wythe County,

produced lead and z inc in 1 9 1 2 . McCaskey has summarized the 1 9 1 2

production from thi s county a s follows :a “The output i s from both ore and

old ta il ings,wh i ch are concentrated . A small tonnage of ore was also

shipped crude . Part of the concentrates and soft ore were treated in theAustinv i lle oxide plant and the rema inder was shipped . At the Little

Wythe m ine,near C ripple C reek

,the principal producti on is of iron ore ,

but as z inc sulphides are encountered in stre aks they are m ined,hand

sorted,and shipped crude to z inc smelters .

The annual statisti cs of l ead and z inc production in V irginia for theN

Years 1 905 to 1 9 1 2 , inclus ive , are given in the table on page 7 .

TIN .

Though not a producer of t in,the existence of tin ore of excel lent

qual ity in the Irish Creek area of Rockbr idge County has been known formany years

,and in 1 883 and later the depos its were opened in several

places .

COAL

The coal areas of Virginia which have produced or are producing are

( 1 ) the R i chmond coal basin in the e astern border of the P iedmont

aA dvance ch apte r f rom M in e ral R esou rce s o f the Un ited Stat es , Cal end a r Y ea r1 9 1 2 , p . 2 1 .

1 0 MINERAL PRODUCTION OF VIRGINIA .

mill ion do llars in value the product ion of any prev ious year . The figures

were short tons,valued at an increase Of

Short tons in quant ity,and in value over 1 9 1 1 . More than

75 per cent of the total increase was from Wi se County, whose productionin 1 9 1 2 was short tons

,against short tons in 1 9 1 1

,

a ga in of short ten s or nearly 20 per cent . In 1 9 1 2, per

cent of the total coal m ined was shot off the so l id , and in 1 9 1 1 . The

number of machines increased from 1 56 in 1 9 1 1 to 1 85 in 1 9 1 2 . Likewisethe mach ine -m ined coal increased from or per cent Of the

total,in 1 9 1 1

,to tons

,or per cent

,in 1 9 1 2 . The quantity

of coal m ined by hand in 1 9 1 2 was tons,as compared w ith

tons in 1 9 1 1 . The average pr i ce per ton of coal m ined in Virginia in

1 9 1 2 was 96 cents,aga inst 9 1 cents in 1 9 1 1 .

The coal m in ing industry in Virginia dur ing 1 9 1 1 showed a very

marked increase over the production for 1 9 1 0,in whi ch year it w ill be

recalled the high-water mark was reached in the production of coal in theState . The figures of production w ere Short ton s

,valued at

Compared w ith the 1 9 1 0 production, the increase in quantitvwas short tons

,and in value The production in Wi se

County increased from short ton s in 1 9 1 0 to Shorttons in 1 9 1 1 ; in Tazewell, from short tons in 1 9 1 0 to

short tons in 1 9 1 1 ; and in Montgomery, from short tons in 1 9 1 0

to short tons in 1 9 1 1 . The production in Lee County decreasedfrom short tons in 1 9 1 0 to short tons in 1 9 1 1 .

In order to avoid d isclosing ind ividual production,the figures for

Henr ico,Pulaski

,and Russell counties are comb ined, and, for the same

reason, it is not poss ible to compare the 1 9 1 1 product ion in these three

counties w ith that of the preceding year . The production of Henr i co,

P ulask i,and Russel l counties combined was short tons

,valued

at The average price per ten in 1 9 1 1 was 9 1 cents,as aga in st

90 cents in 1 9 1 0,and 89 cents in 1 909 . The number of m ining machines

increased from 1 4 2 in 1 9 1 0 to 1 56 in 1 9 1 1,and the mach ine -m ined coal

from short tons in 1 9 1 0 to short tons in 1 9 1 1,

per cent of the total quantity of coal m ined in 1 9 1 1 .

The accompanying table gives the quantity and value of coal produced

in V irginia from 1 908 to 1 9 1 2,inclus ive .

COAL . 1 1

Quanti ty and value of 0m produced in Vi rgini a,1 908 to 1 9 1 2 ,

i nclusi ve.

Y ear

The product ion of coal by count ies in 1 9 1 1 and 1 9 1 2 and its di str ibutionfor consumption are given in the tables below :

Goal producti on of Vi rgin i a in 1 9 1 1 and i n short tons .

1 9 1 1

Coun ty

WiseOther coun ties$1 andsmall m inesTotal .91 26 1

1 9 1 2

Lee 269

Tazewell 203

Wise . 91 261

Other counties3 andsmall m ines . 95

'

252

Total .96 251

aHenri co , Montgomery , Pu lask i , and Russel l .

Tot

a

Average

price

$1 .

per

ton

01

92

Average

number

of

days

active

250

2 1 0

274

279

1 2 MINERAL PRODUCTION OF VIRGINIA .

There is given in the table below the production of coal in Virginia from1 908 to 1 9 1 2 , inclus ive, by coun t ies .

0m producti on of Vi rgi nia,1 908 - 1 9 1 2 , by counti es, i n short tons .

County

b 790 ,066 b 1 , 1 07 ,056b 1 ,292 ,365 +

2G) 3JQ8 2 1 57 l , $ fi RE

TRJtal 6 , 507 ,997 4Total valueaIncludes Lee , Montgomery , and Pul ask i counties .b Includes Henrico , Montgomery , and Pul aski coun ties .

LIST OF COAL PRODUCERS .

OP ERATOR OFF ICEBeacham Coa l Co . Ch r ist iansburgB ig Tow n Hi l l C reek Coa l Corporati on . . R i ch landsB i g Ve in Pocahontas Coa l CO PocahontasB lack Mountain M in ing Co S tone GapB lacksburg M in ing Mfg. Co . Camb ri aB lackw ood Coa l Coke Co . B lackw oodB lue R i dge Coa l Co . Roanok eBond Coa l CO . . TacomaBondurant Coa l Coke CO . Penn ington GapB ruce Coa l Cok e CO . . CoeburnBuchanan Lumber Coa l Co Camden . N . J

C l inch fi el d Coa l Corporation DanteC l inch R i ver Coa l CoCo loni a l Coa l Coke CoDarby Coa l M in ing CO .

Domesti c Coa l CO .

Dom in ion Coa l Co .

Emp i re Coa l Land Corporati onEsser Coa l Cok e CoF lem ing Co RobertFork R idge Coa l COGood loe B ros . Co. , IncG ray Coa l CO .

Ha l l Rob in ett ( Former ly N . E . D i ck enson ) Coeburn

Huettel Coa l Co NortonInterment Coa l I ron CO . B i g Stone GapJew e l l R i dge Coa l Corporation Tazew e l lK inzer Son V i car Sw i tchLipps Coa l W i seMonarch Coa l Co . C in cinnati , Oh i oNorton Coa l CO NortonO ld Dom i n i on Development Co R i chmondPocahontas Conso l i dated Co l l i er i es Co . .New York . N . Y .

Pu lask i A nthraci te Coa l CO Parrott , and New YorkN . Y . ParrottRaven Fue l CO Red A sh ( Raven ) RavenRaven Red A sh Fue l CO Red A sh Red A sh

S lus ser Co. , M . C B lack sburg Brush MountainSouthe rn Anth raci te Coa l Co Roanok e Clear A i rSouthern Pocahontas Coa l Co R i chlands SaterStonega Coke Coa l Co B i g Stone Gap A rno , Imboden , Keokee .

Osaka , Roda , andStonega

M INE

BeachamB i g Town Hi l lB i g Vein NO. 1Kamont

Sn id er H i l lB lackw ood , Pardee , andRoaring Fork

. B lue R idgeG reenoBondurantBruceP rospectC l i n c h fi e l d , CranesNest, and DanteCl inch R iverDo rchesterDarbyDomesti cMabe l EdgarS eaboardEsservi l l eBannerG reenoP in HookJew

COKE . 1 3

OPERATOR M INE

Stonegap Co l l i ery CoSuther land Coa l Coke COTown Hi l l Coa l CoV i rgin i a C i ty Co l l i ery CoV i rgin i a I ron , Coa l Coke Co

Vi rgin i a Lee Co. , IncV i rgin ia -Tennessee Coa l CoW i s e .Coa l Cok e COYe l low C reek Coa l Coke Co. , Inc

COKE.

The coking coals of Virginia are confined to the coal - producing countiesin the extreme southwestern part of the State . Development of the region

began in 1 883 . Virginia i s hand i capped in the manufacture of coke bythe fact that it has but few local markets for its product .

The production of coke in Virginia during 1 9 1 2 amounted toShort tons

,valued at aga inst short tons

,valued at

in 1 9 1 1,an increase Of short tens

,or per cent, in

quantity,and or per cent

,in value .

The number of coke -making establ ishments was 1 8 for each of theyears 1 9 1 1 and 1 9 1 2 . The total number of ovens was reduced from

to whi ch represents an abandonment of - 88 oven s dur ing the year.

There were ovens in operation in 1 9 1 2 and in 1 9 1 1 . The

average value of coke per ton in 1 9 1 1 was and in 1 9 1 2,

Of the 1 9 1 1 production Of coke short tons ) in Virginia,short tons came from W ise County

,w ith a value of

The other counties producing in 1 9 1 1,l isted in order of production

,were

Tazewell, Lee, and A lleghany. Of the total coke production in 1 9 1 2

short tons ) , Short ton s,valued at came from

Wise County . Named in order of production,the other counties producing

in 1 9 1 2 were : Tazewell,A lleghany

,and Lee .

The statisti cs of the manufacture of coke in Virginia from 1 908 to

1 9 1 2,inclus ive

,are shown in the followi ng table .

Stati sti cs of themanufacture of Coke in Vi rgi nia,1 908 - 1 9 1 2 .

Ovens

o o o o o o o o o o o o o o o o o o

O O O O O O O O O O O O O O O O O O

o o o o o o o o o o o o o o o o o o

o o o o o o o o o o o o o o o o o o

Co al used( shortt ons )1, 785jBl

1,42 5JKB

I m p e r i a l , Inman ,L inden , M a r i O n ,Toms C reek

V i rgin ia LeeCoa l CreekW i seYe l low C reek

Yield o f Coke Tot al Value O fcoal in produced value coke atcoke ( per ( short o f coke at ovenscent ) tons ) ovens per ton

G lamorganSuther land.Town H i l lV i rgin i a C i ty

1 4 MINERAL PRODUCTION OF VIRGINIA .

A l l the coa l used in coke -making in Virginia is of exceptionally highgrade and requ ires no preparation before charging i nto the ovens

,save

that of crushing . Hence,all the coal used in the manufacture Of coke

in the State dur ing the years 1 9 1 1 and 1 9 1 2 was unwashed . Of the

short tons of coal made into coke during 1 9 1 1,

were

slack and were run - Of -m ine . Of the total quantity of coal

short tons ) used in the manufacture of coke in 1 9 1 2

short tons were unwashed slack and short tons were unwashed

run—of —mine .

The character of the coal used in coke -making in Virginia dur ing thela st fi ve- year period ( 1 908 to 1 9 1 2 ) i s shown in the table below .

Character of 0m used i n th e manufacture of Coke i n Vi rg in ia

1 908 - 1 9 1 2 ,i n short tons .

o o o o o o o o o o o o o o o o o o o o o

o o o o o o o o o o o o o o o o o o o o o

O O O O O O O O O O O O O O O O O O O O O

O O O O O O O O O O O O O O O O O O O O O

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

LI ST OF COKE PRODUCERS .

OP ERATOR M INE

B lackw ood Coa l Coke COCo lon ia l Coa l Coke Co .

Emp i re Coa l Land Co rpo rati onIntermont Coa l I ron CoLowmoo r I ron Co . of V i rg in iaNorton Coa l Co . NortonPocahontas Consol id ated Co l l i er ies Co ,

In PocahontasStonega Coke Coa l CO B ig Stone GapStonegap Co l l i ery CoSuther land Coa l Coke CoV i rgin ia I ron , Coa l Coke CoW i se Coa l Coke CO Do rchester

CLAYS AND CLAY PRODUCTS.

In 1 9 1 1, the total value of all clay products in Virginia

,includ ing

the value of pottery products,fire clay

,and m iscellaneous clay m ined

and sold in the State,amounted to a decrease of $98 7 24

over 1 9 1 0. The 1 9 1 2 production amounted to in value,an

increase of or per cent over 1 9 1 1 . The pr incipal clay

B lackw oodDorchesterR i ch landsNortonCov ington and Low

moorNortonPocahontasI m b o d e n , K e o k e e ,O saka , and Ston ega

G lamorganDo rchesterA ppa lach i a and Tom sCreek

Dorchester

CLAY S AND CLAY PRODUCTS . 1 5

product in the State i s common br ick, with front br i ck rank ing second,valued at in 1 9 1 2 . A lexandria and I; .

nri co are the two principal

common bri ck- producing counties,with Wash ington

,D . C .

,and R i chmond

the ir ch ief sources of supply .

The table on page 1 6 gives th e statist i cs of cl ay products in Virginia

from 1 908 to 1 9 1 2,inclusive . The item “M iscellaneous$ in the table

includes all products not otherwise specified,such as fire cl ay

,p ipe clay,

clay for moulding,fancy or ornamental br ick

,fire br i ck

,sewer p ipe

,and

pottery products . In order to avoid d isclo sing ind iv idual production,it

becomes necessary to comb ine these items under a Single head .

From the accompanying table i t will be seen that the total number of

common and front br ick manufactured in Virginia in 1 9 1 1 wasvalued at d istributed a s follows : common br ick

,

valued at and front br ick,valued at

The average value per thousand in 1 9 1 1 was : Common bri ck , f ront

br i ck,

The total number of common and front br i ck manufactured in Virginiain 1 9 1 2 was valued at an increase of

in quant ity,and in value over the 1 9 1 1 production . Of the 1 9 1 2

production,

were common bri ck,valued at and

front br i ck,valued at The average value per thousand

in 1 9 1 2 was : Common br i ck,

front bri ck,

The total number of fancy or ornamental br i ck and of fire br ickproduced in V irginia during 1 9 1 1 and 1 9 1 2 must be concealed in order to

avoid d isclos ing figures of ind ividual product ion . For the same reasonit is not poss ible to give the production of common br i ck

,by count ies

,

during each of the years 1 9 1 1 and 1 9 1 2,except for the fo llow ing counties

During 1 9 1 1,A lexandria

,M

,valued at Augusta

,895 M

,

valued at Henr i co, M

,valued at and Nansemond

,

M,valued at and dur ing 1 9 1 2

,A lexandr ia

,M

,

valued at Augusta,6 53 M

,valued at Chesterfield

,

M, valued at Fa irfax

,M

,valued at

Henr ico, M, valued at and Nansemond, M

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1 8 M INERAL PRODUCT ION OF VIRGI NIA .

OPERATOR OFF ICER i ch lands B r ick Corporat ion NortonRoss lyn B 1 i ck C o ash ington D C .

Sa int Pau l Norma l Industr ia l School . . I aw 1 en cev i l le

Shrum B ros . Da y tonSouthern Br i ck Co. ( Former ly Geo. JF letch ei )

Souths ide B r i ck Co. , Inc :

Suffolk C lay C0

Sweet B r iar Inst i tuteTi p Top Br i ck CoTravi s , F rank MTurne r , W . RU p d ike , E stonV i rg i n ia B r i ck Co

V i rg in ia Br i ck CoV i rg in ia B r i ck WorksVu l can Fi re B r i ck Co

Wa lker . W . T . , B r i ck Co

W' ard Br i ck C0

Washington B r i ck Terra Cotta CoWatson -Fi tzg era ld Corporat ionWaver ly B r i ck Co . , In c . l ’eters burgWest Bros . B r i ck Co Wash ing ton D CWest End B r i ck Yard (W . .I . Ready . Prop . ) R i chmond and Man

Wi l l iamson , Hedgecock Fonta in e , Inc . “ Mart insv i l l eWood , D r . Geo . B Empor ia

CLAY M I NED A ND SOLD .

OPERATOR M I NEBranch

,John P

D i ck i nson Fire B r i ck C0Vu l can Fi re B r i ck CoWi l l s

, T . L

POTTERY .

OPERATOR OFF I CE M INEAkron Smok ing P ipe Co Mogadore , Oh ioPowhatan P ipe Co M i chaShenandoah Pottery Co. , Ltd Iroad w a v

LIME.

The production of lime in Vi rgini a during 1 9 1 1 , amounting to

short tons valued at came from 4 4 producers distributed among

the following 1 3 counties : Augusta,Botetourt

,Frederick

,Giles

,Loudoun ,

Montgomery, Rockbridge , Rockingham,Russell

,Shenandoah

,Tazewell

,

Warren,and Washington .

The production of l ime in V irginia during 1 9 1 2 amounted to

short tons,valued at These figures

,when compared with the

figures of production during 1 9 1 1 , represent a decrease of short tons

in quantity, but an increase of in value . There were 4 5 producers

of lime in the State during 1 9 1 2,and the production was distributed among

the following 1 3 counties : Augusta,Bath

,Botetourt

,Frederick

,Giles

,

Loudoun,Montgomery, Rockbridge , Rockingham

,Russell

,Shenandoah

,

Tazewel l,and Warren .

F reder i cksburgR i chmondSu ffolkSweet B r iarT i p TopNew Londonl'eters burg

($

h a 1 ° lottesv i l l e

W ash ington , D .

Sutf ol k

R i chmondBa lt imore , Md .

Wash ington . D . C .

Ga laxW ash ington , D . C .

Danv i l l e

C .

W ORK SR i ch landsRoss lynLawrencev i l leDay ton and Harr i sonburg

Freder i cksburgBarnes Sid i ngLady sm i thSweet B r ia rTi p TopNew LondonEttr i cksChar lottesv i l l eRe l eeSu ffolkEast Fu l tonWi lmon t

. A rl ing tonGa la xR ivers ide ParkDanv i l l e and Leaksv i l l eJunction

Waver lyRe leeH en r i co

Cheste rFonta ineEmporia

LIME .

There are given in the table below the production and value of lime in

Vi ri gin i a during 1 9 1 1 and 1 9 1 2 , by counties .

P roducti on and value of Lime i n Vi rginia i n 1 9 1 1 and 1 9 1 2 , by counti es .

1 91 1 1 91 2

P roducti on P roducti onCounty Sh ort t ons V a lue Sh ort t ons Va lue

aInc luded unde r othe r count ies .

bIncludes Fr ede rick , Gi l e s , Loudoun ,1Montgom ery , Rockb ridge , Russel ] , Tazewel l ,

W arr en,and W a shington coun ties .

CInc ludes Bath , Gi l e s , Loudoun , Mon tgom e ry ,Rockbridge , Russel l, Tazewel l , and

Wa r r en .

In the table below is given the product i on of lime in Virginia in 1 9 1 1

and 1 9 1 2,by uses .

P roducti on of Lime i n Vi rgi nia during 1 9 1 1 and 1 9 1 2 , by uses ,

i n short tons .

Quantity V a lue Quantity Va lue

Bui ld ing l imeHyd rated l ime ( a ) ( a ) ( a ) ( a )P ap er mi l l s (b ) (b )Ferti l izerTanneriesCh emi ca l w ork s ( b ) (b ) (b ) (b )Deal ers— uses notM i sce l l aneousc 1

aOn ly a sm al l quan tity of th e l ime p roduced i n V i rgin i a i s hyd rat ed .

bInc luded und e r m iscel lan eous .

CInc ludes l im e for chem ical work s and oth e r pu rpos es in 1 9 1 1,and l ime for

pap e r m il ls , chemical work s , and oth e r purpose s i n 1 9 1 2 .

20 M I NERAL PRODUCT ION or VIRGINIA .

LIST OF LIME PRODUCERS.

OPERATOR OFF I CEBarl ey , Lou is C A l exandr iaB lankensh ip , S. M D eerfi el d

B r istol L ime Stone Co. , Inc . B i i s tol , Va .-Tenn .

B rown , C . H Stuarts D raftConner , I . N Vauc luse Stat ionCooper , I . Ccupp , G . V o o o o o o o o o o o 0 0 0 . o . o . o . 0 0 0 0 0 0 o o

Spring CreekCupp , Stewart Spr ing C reekDav is , C . w B lacksburgD i l lon ’s , E . , Sons Ind ian RockD r iver , Ira Sidn eyEag le Rock L ime Co Eag le RockEureka L ime Co V i car Sw itchFel l sw orth L ime Works Staun tonFiber

,John ‘ W . Spr ing Creek

Fifer , John Spr ing CreekGrove , M . J. , L ime Co Limek i ln . Md .

Harr is , J . A . Stuarts D raftHa rr i s , . .I W . Stua 1 ts D raftH ess , S. L Sp r ing C reekHog shead , Chas . A Mossy CreekK i racofe , C . S B r idgewaterLeesburg L ime Co. , Inc LeesburgL imeton L ime Co L imetonL inv i l l e L ime C0 L i nv i l l eM cc lure , J . D Startann eryM c l lw ee, C . E . Z eppM cK immy , A . G LuckettsM i chae l

,J . W . . Spr ing Creek

M i l ler,E . E . Br idgewater

M i l l er , G . E . B r idg ewaterMoore L ime Co. Ri chmondNatura l Br idge L ime Co G lasgowNew R iver L ime Co R i pp lemea

Oak R idge L ime Fi rm M t. SolonOrndorfi . M . M . . Q 1 and a

O y l er , Geo. VPowhatan L ime Co StrasburgPu l l ins , A . C Mt . SidneyR iverton L ime Co . R ivertonRockbridge L ime Stone Co . Lex ingtonRockda le L ime Co Toms B rookRowe , O . F .D eerfi el d

Rusm i sel l e. J . A Mt. SolonShenandoah L ime Co Strasburg JctStanda i d L ime Stone Co St 1 asburgStaunton , C i ty of StauntonStrasburg L ime Co . StrasburgStuart Land Catt l e Co E lk GardenTazewe l l Wh i te L ime Works North Tazewe l lThompson , T . W H intonW h eel barger- Rumsey L ime Corporat ion . . Day ton

CEMENT.

There are only two plants for the manufacture of P ortland cement in

V irginia,namely, that of the Virginia P ortland Cement Company at

Fordwick,Augusta County, and that of the Norfolk P ortland Cement

Corporation at Norfolk . The Fordwick plant has a capacity of

barrels,and is sell ing the O ld Dominion cement in the ‘

North as well as

in the South . The materials used by th is plant in the manufacture of

Old Dominion cement are Lewistown limestone and shale . The Norfolkplant i s the first plant built in the South to manufacture P ortland cement

from shell marl as the principal calcareous material instead of the hard

K ILN2 8 m i l es w . of Staun tonD eerfi el dBenhamsStuarts D raftVauc luse StationH intonSpr ing CreekSpr ing CreekB lacksburgInd ian RockMount Sidn eyEag l e RockV i car Swi tchStauntonSpr ing CreekSpr ing CreekStephen s Ci tyStua rts D raftStuarts D raftSangerv i l l eMossy CreekBr idg ewaterLeesburgL imetonL i nv i l l eStartanneryZepDLuckettsSangerv i l l e

0 0 0 0 0 0 0

B r idg ewaterBr idgewaterEag l e Mounta inSherwoodR ipp l emeadM t . SolonO randaWinchesterStrasburgM t . SidneyR ivertonLex ing tonToms B rookD eerfi el d

M t. SolonStrasburg Jct .StrasburgStauntonStrasburgE lk GardenNorth Tazewel lHarr isonburgDay ton

SAND AND GRAVEL . 2 1

rock— l imestone . The marl and cl ay deposits used by this plant are located

on branches of James River ne ar Sm i thfi el d and Chuckatuck.

Inasmuch as there were only two plants in Virginia producing P ortl and

cement in ( 1 9 1 1,the figures of production are combined with those of

another subj ect in order to avoid disclosing i ndividual operations . The

same condition holds for the 1 9 1 2 production .

LIST OF CEMENT PRODUCERS.

OPERATORNorfolk Portland Cement Corporat ionV i rg in ia Port land Cemen t Co

SAND AND GRAVEL.

The production of sand and gravel in the State during 1 9 1 2 amounted

to short tons,valued at as compared with short

tons,valued at in 1 9 1 1 . These figures represent an increase

over the 1 9 1 1 production of short tons in quantity, and

in value .

In 1 9 1 1,there were 31 producers

,operating in 20 counties . The

production by counties, during 1 9 1 1 , was as follows : Giles, short

tons,valued at Henrico

,short tons

,valued at

Rockingham,

short tons, valued at Spottsylvan i a

short tons,valued at and other counti es,

a short tons,

valued at

In 1 9 1 2,there were 3 1 producers

,operating in 2 1 counties . The

production by countie s, during 1 9 1 2 , was as follows : Gile s,

short

tons,valued at Henrico

,short tons

,valued at

Roanoke,

short tons,valued at Rockingham

,short

tons,valued at Spottsylvan ia, short tons

,valued at

and other counties,b short tons

,valued at

The following table shows the details of the industry, and the com

parati ve quantities and values from 1 908 to 1 9 1 2,inclusive .

aIncludes A l exand r i a, A l l eghany , August a , Campbel l , Ca rolin e , Char le s Ci ty ,D i nwi ddi e , E l i z ab eth C i ty , New Kent

,Nor folk, P r inces s Anne, Pula sk i , Roanoke,

Scott , Shen andoah , and Wythe.

bIncludes Al exand ri a , A l l eghany , August a , Campb el l , Carol i n e, Cha r l es C i ty ,D i nwidd i e , E l i zabeth City , Hanover, New Ken t

,Nor folk

,P i ttsyl van i a ,

P r incess Anne,Pul aski , W i se, and W yt he .

VIRGI NIA .OFMINERAL PRODUCT ION2 2

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STONE . 23

LIST OF SAND AND GRAVEL PRODUCERS.

OPERATOR OFF I CE P IT OR RED

Appomattox I ron Works PetersburgB i ckford Sand Grave l Co HamptonBotto. J . L . , Sand Co R i chmondB rom i law B r i ck CO A lexandr iaCa lhoun . James W . , B ro North R iver

J . S Ed inburgColumb ia Grani te D redg ing Co Wash ington , D . C .

Cooper G lass Si l i ca Co Sa l emCow ard in . S. P R i chmond

T Lur i chHoldcroft

D i l l s . M . C B lu ff C ityE l l is . Atwe l l C LyndhurstF rench , J . E . , B ro CurveF rench , K . S . ( Sold to Wh i te Sand Co. ) . . Narrowsl-Iarbaugh . S. I . , M rs R i chmondHun ter , C . E Farmers ’ F r iend P lowWorks F reder i cksburgL i l l i e . Georg e W R i chmondLowmoor I ron Co of V i rg in ia LOW IDOOI

hi ercer 1\Ii ] ler R i chmondMonger , J . H North R iverNat iona l M f g . Co . , Inc LynchburgNorfolk Sand Grave l Corporat ion NorfolkNorfolk Southern R y . Co NorfolkLaughon B . . Co .

Pulask iPort Republ i c FoundryQuar l es . GReynolds Wh i te Sand CoR iéhmond . F reder i cksburg Potomac R y

o.

Shepherd . Lark i nSouthern Sand Grave l CoSummerman . Thomas HWater Works Supp ly Corporat ionW ebb . J . HWi l l s . T. L

STONE .

The stone industry in 1 9 1 2 was third in importance among those based

upon the mineral wealth of the State, being surpassed only by the coal and

cl ay products .

ores .

The total production exceeded in value that of the iron

The value of the annual production of stone in Virginia from 1 908

to 1 9 1 2 i s given in the accompanying table .

Value of the annual producti on of Stone i n Vi rgi ni a from 1 908 - 1 9 1 2

i nc lusi ve.

Ye ar Granite Sand st one Sl ate Limest one Tot al

31 943 56 32805 42

1 072 382

The total value of the diff erent kinds of stone quarried for the periodof years for wh i ch statistics are given, shows that the quarrying of granite

F reder i cksburgMassaponaxLowmoorR i chmondHarr isonburgLynchburgHamptonCape H en ryDe l ton ( LaughonSid ing )

Port Repub l i cR i chmondB r i stolF reder i cksburgAppa lach iaF reder i cksburgIvanhoeNorfolkRoanokeLynchburg

MI NERAL PRODUCTION OF VIRGI NIA .

i s the largest industry in stone, wi th limestone next, and slate third . The

production of sandstone for the period represented in the table is rel at ivelyunimportant .

The value of the total production of stone in the State during 1 9 1 2

was against in 1 9 1 1,an increase in value of

Grani te.

The production of granite in the State during 1 9 1 1 was valued at

against in 1 9 1 0,a. decrease in value of or

nearly per cent . Twenty- eight producers distributed among 1 6

counties contributed to this production . The counties were : Campbell,Chesterfield

,D inwiddie

,Fairfax

,Fluvanna

,Goochland

,Greenesvi l le,

Henrico,Loudoun

,Lunenburg

,Mecklenburg, Nelson, P i ttsylvan ia, P rince

Will iam,Spottsylvan ia, and Stafford .

The value of the granite production in 1 9 1 2 was which

represents an increase in value of over the 1 9 1 1 production .

There were 1 5 counties producing in 1 9 1 2,namely, A lexandria, Campbell ,

Chesterfield,D inwiddie

,Fairfax

,Fluvanna

,Goo

-

chland,Greenesvi l le

,

Henrico,Loudoun

,Lunenburg

,Nelson

,P i ttsylvan i a, P rince William,

and

Sta fford,and the output was distributed among 2 5 producers .

There are given in the table below the value and uses of the granite

and gneiss quarried in Virgini a during the years 1 908 to 1 9 1 2 , inclusive .

Value of Grani te produced i n Vi rgin ia,1 908 - 1 9 1 2

, by uses .

1 908 1 909 1 91 0 1 91 1 1 9 1 2

So ld i n the roughBui ld ingM onumenta lOth er

Dressed f or bui ld ingD res sed f or monument al workM ade int o p aving b l ocksCurb ingF lagg ingRubb leR ip rapCrushed st one

R o ad -makingR ai lro ad ba l la stConcrete

Oth erM i s ce l l aneous $

Tot a l

aIncluded unde r mi scel lan eous .

bInc lud es d re ssed for monumen ta l work,flagging, and othe r pu rposes .

1 , 1966 ,77

990

1 6 336

4 400 1 220

2 6 M I NERAL PRODUCT ION OF VIRGI NIA .

marked increase over that of 1 91 1 . The value of the production in 1 9 1 2

was against in 1 91 1,an increase of or

per cent .There were 34 producers of l imestone d uring 1 9 1 1

,operat ing in 1 6

counties as follows : A lleghany, Augusta,Botetourt, Gi les , Loudoun,

Montgomery, Roanoke, R ockbridge, Rockingham,

Russell, Shenandoah,Smyth, Tazewell, Washington, Wise, and Wythe . There were 33 producers

of lim estone in Virginia in 1 9 1 2,the production coming from the same

counties as in 1 9 1 1,except that Montgomery and Russell counties had no

production,and there was one additional county, Warren, producing .

The production of l imestone in V irginia from 1 908 to 1 9 1 2,inclusive

,

and the uses for which it was quarried are given in the table below

P roducti on of Limestone i n Vi rgi nia, from 1 908 to 1 9 1 2 , by uses .

1 908 1 909 1 91 0 1 91 1 1 91 2

R ough bui ld ing 7 1 5 1 25 $5 ( a )D ressed bui ldi ng 1 29

1 5 45 ( a )Curb ing 79 750F l agg ing 1 1 0 7

Rubb leR ip rapCrush ed st one :R o ad -makingR ai lro ad b a l l astConcrete

5

5 31 1 583b 31 ,880

c

Tot a l $280,542

aInc luded unde r miscel lan eous .bIncludes rough bui lding, paving, and a lk al i work s .CIncludes a lkal i work s , pap er m ill s . rubbl e, and smal l p rodu ction of ma rbl e .

LIST OF LIMESTONE PRODUCERS.

OPERATORA l leghany L ime Co. . IncA l l eghany O re I ron CoBr istol L ime Ston e Co. , IncBunn CO .

Box ley , W . WC la i k County Construct ion CoCooper , I. CCr igger , R . CCu lbert , W . FD i l lon ’s Sons . E Ind ian

Eag l e Rock L ime Co

STONE . 2 7

OPERATORFel l sworth L ime WorksFisher Co. , S. EFishersv i l l e L ime Gr ind ing COIvanhoe Furnace CoK inzer Vermi l l ionLarn er Co. , W i l l iamLeesburg L ime Co. , IncL imeton L ime CoLongda l e I ron CoLowmoor I ron Co. of V i rg in iaMark l ey , C .

Mathews Curt i s Co. , IncMoore L ime Co . .

Natura l B r idg e L ime CoO r iskany O re I ron Corporat ionPaxton , C . HPeters Co. , R . LPowhatan L ime CoPu lask i I ron COR iverton L ime CoRockbr idge L ime Ston e CoRockda l e L ime CORu l e , W . R

Staunton , C ity ofStuart Land Catt l e CompanyVaughan Construct ion COV i rg in ia I ron , Coa l Coke Co

We l l s , John S StauntonWy thev i l l e Town Quarry Wy thev i l le

Sandstone.

The production of sandstone in Virginia is sl ight,and it varies greatly

according to the local demands . The production in 1 9 1 2 was valued at

as compared with in 1 9 1 1,a decrease of There

were 3 producers during 1 9 1 2,and 5 during 1 9 1 1 . The value of the

annual production of sandstone in the State from 1 908 to 1 91 2 , inclusive,i s shown in the accompanying table .

Value of Sandstone producti on i n Vi rgi ni a, 1 908- 1 9 1 2 .

LIST OF SANDSTONE PRODUCERS.

OPERATORGa ither Construct ion CoHa l l , L . MMathews Curt is Co. , IncPeak C reek Sandston e CoWarden Ha i l ley

0

QUARRYStauntonStrasburg Jct .Fishersv i l l eIvanhoeTazewe l lStauntonLeesburgL imetonLongda leLowmoorRoanokeC l ifton ForgeEag l e RockSherwoodBel l s Va l l eyNatura l B r idgeB ig Stone GapStrasburgPatterson and IvanhoeR ivertonLex i ngtonToms B rookA b i n g d o n and E lk

GardenStauntonE lk GardenRadford and RoanokeB a r r e n S p r i n g s ,Buchanan , and Radford

StauntonWy thev i l l e

M I NERAL PRODUCT ION OF VIRGI NIA .

Slate.

There are five principal slate areas in V irginia, which, named in the

order of their comm ercial importance, are : ( 1 ) The A rvonia belt in

Bucki ngham and Fluvanna counties ; ( 2 ) the Keswick-Esmont belt in

A lbemarle County ; ( 3 ) the Snowden belt in Amherst and Bedford

coun ties ; ( 4 ) the Warrenton belt in Fauquier and Culpeper counties ; and

( 5 ) the Quantico belt in Spottsylvan ia, Staff ord, and P rince Willi am

coun ties . These are shown on map,

fig . 1 . The production during the

ye ars 1 9 1 1 and 1 9 1 2 was from the Arvonia and Keswick -Esmont belts .

In 1 9 1 2,Virginia ranked fourth among the slate - producing states . The

productive quarries are at Esmont,A lbemarle County, and Arvonia and

P enlan,Buckingham County . The product from these quarries i s used

exclusively for roofing .

The total production of slate in 1 9 1 2 was squares,valued at

as compared with squares,valued at in 1 9 1 1

,

an increase of squares in quantity and in value . The average

price per square in 1 9 1 2 was and in 1 9 1 1,

a decrease of

per square . In 1 9 1 1,there were 7 producers of slate operating in

two coun ties, namely, A lbemarle and Buckingham,as against 8 in the same

counties in 1 9 1 2,with the principal part of the production for each ye ar

from Buckingham CountyThe amount and value of the annual production of slate in Virgi nia

from 1 908 to 1 9 1 2,inclusive

,are given in the accompanying table .

P roducti on of Slate i n Vi rginia,1 908 - 1 9 1 2 .

o o o o o o o o o o o o o o o o o o o o o

o o o o o o o o o o o o o o o o o o o o o

o o o o o o o o o o o o o o o o o o o o o o

The number of squares,as given in the above table

,includes both

first and second qualities,and the average price per square does not give a

fair indication of the prices obtained for most of the stock .

30 M I NERAL PRODUCT ION OF VIRGI NIA .

LIST OF SLATE PRODUCERS.

OPERATORBuck ingham Slate Co. , IncLeSeuer Sl ate Co. , IncNat iona l Slate Corporat ion of V irg in ia( Former ly New York Buck inghamS late

Pen lan Slate CoP itts Slate Co. , A . LR ichmond Slate Co. , IncStandard Slate Corporat ionW i l l iams Slate Co

Crushed Stone.

The value of the producti on of crushed stone in V irginia in 1 9 1 1 wasagainst in 1 9 1 2

,an increase of $6 7 535 . This material

is used exclusively for road -making,railroad ballast

,and concrete

,and

includes a wide range of rock - tvpes , such as the crystalline sil iceous rocks .

l imestone,etc .

The value of the crushed stone produced in Virginia from 1 908 to1 9 1 2 , inclusive , i s given in the t able below .

Va lue of annual producti on of Crushed Stone i n Vi rg in ia . 1 908 1 9 1 2 .

Granite , Gneis s . etc .

R oad B a l ConYear making l a st crete

1 04 945

Furnace Flux .

Limestone,used in smelting operations for flux

,i s quarried and shipped

to the numerous blast furnaces in the State . The utilization of l imestone

as flux constitute s the largest consumpti on of the V irginia stone . Each

of the principal l imestone horizons in western V irgini a suppl ies some stone

as flux to the iron furnaces,but the Cambro—O rdovician and Lewistown

(Helderbergian ) l imestones are the principal sources of stone for thispurpose .

Of the total production of l im stone in the State in 1 9 1 1

only 39 per cent was sold as flux and util ized in the blast

furnaces,and in 1 9 1 2

,32 per cent was sol d for the same purposes .

Limest one

R o ad B a l Conmaking l a st crete

ABRASIVE MATER IALS. 31

The value of the limestone sold as flux in 1 9 1 2 was against

in 1 9 1 1,a sl ight decrease .

There are given in the tab le below the annual production and value

Of l imestone as furnace flux in V irginia. from 1 908 to 1 9 1 2,inclusive .

P roducti on of Furnace F lux Vi rgi ni a,1 908 - 1 9 1 2

,

Year Quantity

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

ABRASIVE MATERIALS.

Mi l lstones (Buhrstones ) .

The millstone industry in Virginia is limited to the quarries in Brush

Mountain,near P rice’s Fork

,Montgomery County. A very marked

increase in the production was shown for the years 1 9 1 1 and 1 9 1 2 . The

value of the production in 1 9 1 1 was nearly three and a half times that of

1 9 1 0,and that of 1 9 1 2 was much larger than for 1 9 1 1 . The value of

the millstone production in 1 9 1 1 was and in 1 9 1 2,

an

increase of These figures represent the value of mill stones of1 2

,1 4

,1 5

,1 6

,20

,2 2

,24

,2 6

,30

,36

,4 2

,and 4 8 inches in size

,and of a

small output of Chasers ( drag stones ) . F ive operators contributed to the

production for each of the years 1 9 1 1 and 1 9 1 2 .

The value of millstones produced in Virginia from 1 908 to 1 9 1 2,

inclusive,is given in the table below .

Va lue of M i l ls tones produced i n Vi rgi nia,1 908 - 1 9 1 2 ,

i nc lusi ve.

Year1 908

1 909

1 91 0

1 91 2

LIST OF ABRASIVE PRODUCERS.

OPERATOR OFF I CE QUARRYCowan M i l l stone CO . ( Former ly R . E .

Sn ider )L i nkous , F . C . H . MC l inger, R . L . , Co B rush Moun ta in

,n ea r

Pr i ce, B . S. , Co . Pr i ces ForkPr i ce ,

32 M INERAL PRODUCTION OF VIRGI NIA .

SILICA .

Under this heading are included three forms of sil ica whi ch have

rather wide distribution in the State . These are quartz,chert

,and

diatomaceous earth . There was no reported production of quartz and

chert in 1 9 1 1 and 1 9 1 2,although preparations were in progress during

1 9 1 2 for working several of the quartz deposits in 1 9 1 3 . The Vulcan

F ire Brick Co.,Baltimore

,Md .

,with operations at Roll ins Fork

,King

George County, was the only producer of diatomaceous earth in Vi rgin ia

during the years 1 9 1 1 and 1 9 1 2 , respectively, and, in orde r to avoid dis

clos ing individual production,its Output i s included under “Other

P roducts . $

MICA .

A lthough Virginia has been an irregular producer of mica for many

years, there was no production reported in 1 9 1 2,and only one producer

in 1 9 1 1,namely, the Chestnut Mountain M ica Company, near Rocky

Mount,Franklin County. Interest was revived in several of the Virgini a

m ica mines in 1 9 1 2 , and active preparations were in progress for worki ngi n 1 9 1 3

LIST OF MICA OPERATORS.

OPERATORChestnut Mounta i n M i ca Co

Corson M i ca CoFin k , C . E . J . BHanover M i ca Co .

Meck lenburg M i ca M in ing Co

Otter H i l l M i ca M in esP inchbeck M i ca M inesReed

,M rs . E . P .

R idg eway M i ca Co .

Rutherford , A . HV i rg in ia Asbestos CoWinston , Chas . PWooton Fonta ine

FELDSPAR .

The entire production of feldspar in the State during the years 1 9 1 1

and 1 9 1 2 was from a single operator,the Domi ni on State M ines Corpo

ration, P rospect, hence the figures of production are combined with those

of another subj ect,in order to avo id disclosing individual returns .

ASBESTOS.

No production of asbestos has been reported in Virgi nia since 1 906 .

although the mineral has been noted in several of the P iedmont counti es,

OFF I CEDanv i l leE Stroudsburg , PaI rwinHew l ettSouth H i l lFind lay , Oh ioChu laI rw inP i ttsburgh , Pa .

Amel ia C . H .

Terre Haute , IndAme l ia C HAxton

M INERocky Moun tAme l iaI rwinHewl ettSouth H i l lB edford CityAme l ia C . H .

I rw inR idgewayAme l ia C . H .

B edford Ci tyAme l ia C . H .

Mart insv i l le

34 MI NERAL PRODUCTION OF VIRGINIA .

The yearly production of talc and soapstone in Virginia from 1 908 to

1 9 1 2,inclusive

,i s given in the table below .

P roducti on of Ta lc and Soapstone i n Vi rgi ni a,1 908 - 1 9 1 2 ,

i n short tons .

Year Quantity

LIST OF TALC AND SOAPSTONE PRODUCERS.

OPERATORBu l l Run Ta l c Soapston e CoC l imax Soapstone CoFa i rfax Soapstone CoHorst , John B . , Son

O ld Dom in ion Soapstone Corporat ionPhoen ix Soapston e COP iedmon t Soapston e CoUt i ca M in ing M i l l ing COV irg in ia Soapston e COV i rg in ia Ta l c Soapston e CO

BARYTES.

The production of barytes in V irginia for each of the years 1 9 1 1 and

1 9 1 2 can not be publ ished separately without disclosing the output of

individual operations,hence the figures are combined with another subj ect .

LIST OF BARTYES PRODUCERS.

OPERATOR M I NECh ism, Dani e l C P i ttsy lvan i a Coun tyLanghorne , R . H Ev ing tonNul s en , K l e in Krausse M f g . Co Toshes

GYPSUM .

Gypsum of excellent quality was mined in 1 9 1 1 and 1 9 1 2 by the

Southern Gypsum Company at North Holston, three and a half miles north

east of Saltville, Smyth County, and by the United States Gypsum Com

pany at P lasterco, Washington County . The crude gypsum is treated in

the mills of the two companies on the respective properties,and the product

put upon the market in the form of wall plaster and land plaster . The

geology of these deposits i s described by George W. Stose on pages 5 1 - 73

of this report .

0 0 0 0 0 0

O FFI CEC l ifton Stat ionE lm ington , or

Yo rk . N YW i eh leC l ifton Stat ionE smontNew York , N YAsbest in eO rangeSchuy l erVerd i ersv i l l e

QCAR l iYC l ifton '

Stat ion

E lm ingtonW i eh l e

C l ifton Stat ionDamonA rr ing tonAsbest i neRhoadesvi l l eA lb erene and Schuy l e rVerd iersv i l l e

SALT, M I NERAL P AINTS,MARL . 35

The figures of production for each of the years 1 9 1 1 and 1 9 1 2 are

combined with another subj ect,in order to avoid disclosing individual

production,since there were only two producers .

LIST OF GYPSUM PRODUCERS.

OPERATORSouthern Gy psum Co IncU . S. Gy psum Co. ( a )

aForm erl y Buena Vi st a P l a st e r and Min i ng Co . , P l a ste rco.

SALT.

Salt brines and rock salt occur in the Holston Valley of southwest

Virgini a in associat ion with gypsum . More than 50 wells have been

drilled,ranging in depth from 300 to feet . These wells are confined

to the immediate vicinity of Saltville , and are controlled by the Mathieson

A lkal i Works . Since 1 903 the brines have been utilized exclusively for

the manufacture of soda products,chiefly sodium carbonate and caustic

soda .

The geology of these deposits is described by George W . Stose on pages

5 1 - 73 of this report .

MINERAL PAINTS.

The production of mineral p aints in V irgin i a during 1 9 1 2 was limited

to the natural product ocher and came from one producer each in Bedford

and P age counties . In 1 9 1 2 the production included ocher and p igments

( z inc oxide , ZnO) made directly from ores . The output in ocher was

from Bedford,P age

,and P ulaski counties

,and that of z inc oxide (ZnO)

from the Bertha M ineral Company at Austinville, Wythe County . The

figures of product ion of mineral paints for 1 9 1 1 and 1 9 1 2 are combined

with those of another subj ect .

LIST OF MINERAL PAINT PRODUCERS.

OPERATORFraz i er Pa in t COH iwassee Chem i ca l Color M inesSt i g l eman . W . T

V i rg in ia O cher Corporat ion ( a )

0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

o o o o o o o o o o

aFormerlv Page Oche r Co rpor at ion , Stan l eyton .

MARL.

Greensand and shell marl s are widely distributed over the Coastal P lain

region of V irginia , but there was no reported production of e ither during

36 M I NERAL PRODUCTION OF VIRGINI A .

1 9 1 1 and 1 9 1 2 . Shell marls in Isle of Wight County were dug and used

by the Norfolk P ortland Cement Corporation in the m ix for the manu

facture of P ortl and cement at their plant in Norfolk .

Fresh water calcareous marls of excellent grade and in quantity are

found in several counties of the Valley region west of the B lue R idge .

A ctive preparations were in progress during 1 9 1 2 in Bath and Rockingham

counties to mine these marls for agricultural purposes .

PYRITE AND PYRRHOTITE.

V irginia has long held first position as a producer of pyrite among

the pyrite - producing states in the United States . The production for the

years 1 9 1 1 and 1 9 1 2 was from four operators as follows : Cab in Branch

M ining Company’ s mine

,near Dumf ries

, P rince Will i am Coun ty ;Arminius Chemical Company ( Inc . ) and Sulphur M ining and Railroad

Company’s mines

,and 4 miles

,respectively, north of M ineral, Louisa

County ; and the P ulaski M ining Company’s mine at Monarat, Carroll

County. The ore mined. by the P ulaski M ining Company at Monarat is

chiefly pyrrhotite, which is util ized in their plant at P ulaski .

In addit ion to the producing properties in 1 9 1 2 named above,one new

property was being developed and plans for the reopening of several old

ones were in progress . The O ld Dominion Pyrite M ining Company begandeveloping in 1 9 1 2 a property located about 1 mile east of the Arminius

mine and about 2 miles north of M ineral in Louisa County. P reparations

were being made to reopen the Boyd Smith mine situated north of M in eral,between the mines of the A rminius Chemical Company and the Sulphur

Mining and Railroad Company. The mine on Austin Run,near Stafford

,

Stafi ord County, developed by the Austin Run M ining Company was takenover by the Old Dominion Sulphur Company, for reopening and working.

The production of pyrite ( concentrated and crude ) in Virginia duri ng1 9 1 2 amounted to long tons

,valued at against

long tons,valued at in 1 9 1 1

,an increase of 1 1 6 78 long tons in

quantity and in value . There was an increase in the average price

per ton from in 1 9 1 1 to in 1 9 1 2 . The average sulphur content

in pyrite produced in V irginia during 1 9 1 1 and 1 9 1 2 was about 4 3 per cent .There is given in the table below the production of pyrite in V irgin ia

from 1 908 to 1 9 1 2 , inclusive .

ARSENIC, RUT I LE, M I NERAL WATERS. 37

P roducti on of P yri te i n Vi rginia,1 908 - 1 9 1 2 , inclusi ve.

Ye ar

LIST OF PYRITE PRODUCERS.

OPERATOR OFF I CEA rm in ius Chem i ca l Co . MineralCab in B ranch M in ing CO Ba lt imore , Md .

Pu lask i M in ing Co New York , N. Y.

Sul phur M i n ing Ra i l road Co R i chmond

ARSENIC.

The mines of the United States Arsenic M ines Company, located 1 4

miles southeast of Christian sburg,at Brinton

,Floyd County, did not

produce during 1 9 1 1 and 1 9 1 2 . The ore i s arsenopyrite, a sulph—arsenide

of iron (FeAsS) , and occurs in lenses in quartz - sericite schist .

RUTILE (Titani um) .

Virginia is the only producer of rutile in the United States, and much

of the product is shipped abroad . The Am erican Rutile Company,Operating at Roseland, Nelson County, was the only producer in 1 9 1 1 and

1 9 1 2 . This company i s mining and milling rutile in the hard rock syenite,and in 1 9 1 2 added a magnetic separating machine to its equipment . The

nelsonite occurrence of rutile in the same district is not now mined . There

was no production of rutile in 1 9 1 1 and 1 9 1 2 from the recently exploited

deposits of Goochland and Hanover counties in the central eastern portion

of the Virginia P iedmont province .

The 1 9 1 2 production was large and greatly in excess of that of any

previous year

MINERAL WATERS.

The production of mineral waters in Virginia during 1 9 1 2 showed a

marked increase in quantity and value over that of the previous year 1 9 1 1 .

In 1 9 1 2,the production of mineral waters was gallons

,valued

at as compared with gallons,valued at in

1 9 1 1, an increase of gallons in quantity, and in value .

These figures are exclusive of the quantity of water used in the manufacture

38 MINERAL PRODUCT ION OF VIRGI NIA .

of soft drin ks . The average price per gallon of the w ater sold in 1 9 1 1

was 1 2 cents, and in 1 9 1 2 , 1 3 cents .

The following table gives the production and value of mineral waters

in V irginia from 1 908 to 1 9 1 2,inclusive .

P roducti on and value of M i neral Waters i n Vi rgi ni a, 1 908 to 1 9 1 2 .

Ye ar V a lue

aAmount used for soft d rink s not includ ed .

Of the gallons of mineral waters sold in Vi rginia during

1 9 1 1,valued at worth was sold for medicinal purposes

and worth for table or domestic use ; and during 1 9 1 2,of the

worth sold,

was for medicinal purposes,and

was for table or domestic use . The total number of springs reported as

producing in 1 9 1 1 was 4 3,and in 1 9 1 2

,4 5 . These were distributed among

the fol lowing 2 4 count ies : Alex andria,Amelia

,Augusta

,Bath

,Botetourt

,

Chesterfield,Culpeper

,Franklin

,Henrico

,Loudoun

,Mecklenburg,

Montgomery, Norfolk, Nottoway, P rince Edward, P rincess Anne Roanoke,Rockbridge

,Rockingham

,Surry, Sussex , Tazewell, Warwick, and Wythe .

Virgini a occup ied third place in 1 9 1 1 and 1 9 1 2 in the num ber of

commercial springs in the United States,and also in the value of medicinal

waters sold . A s indicated above nearly one - half of the output is sold for

medicinal use . Eleven springs reported resorts in 1 9 1 2,accommodating

people,and at 6 the water is used for bathing . The returns show

that about gallons of water are used to make soft drinks,in addi

tion to the sales .

Out of a tota l of 62 springs credited to V irgini a,4 3 reported sales in

1 9 1 1, and 4 5 in 1 9 1 2 . The list of producing springs for the years 1 9 1 1

and 1 9 1 2 i s as follows :

A lleghany Springs,A lleghany, Montgomery County.

Basic Spring, Basic C ity, Augusta County.

Bear Lithi a Spring,near Elkton , Rockingham County.

Beaufont Spring,South Richm ond

,Chesterfi eld County.

Berry Hill M ineral Spring, Elkwood , Culpeper County.

M I NERAL WATERS. 39

B lue R idge Springs,near B lue R idge Springs

,Botetourt County .

Bowman Spring,near Staunton

,Augusta County .

B road Rock M ineral Spring, near Richmond, Chesterfield County.

Brugh Spring,Nace

,Botetourt County.

Buckhead Lithia Spring,Buckhead Springs

,Chesterfield County.

Buffalo Li thia Spring,Bufi alo Lithia Springs, Mecklenburg County.

Burnetts Spring,Hudson M ill

,Culpeper County .

Campfield Lithia Well, R ichmond, Chesterfield County.

Carper Lithi a Springs,R adford

,Montgomery County.

Como Lithia Spring,East R ichmond

,Henrico County.

Coppahaunk Mineral Springs, Waverly, Sussex County.

Crockett A rsenic Lithi a Spring,Crockett Springs

,Montgomery County .

Diamond Spring,D i amond Spring

,P rincess Anne County.

Erup M ineral Spring, near Glencarlyn, A lexandria County.

Farmville Lithia Springs,Farmville

,P rince Edward County.

Fonti cel lo M ineral Spring, near Manchester, Chesterfield County.

Harris Anti - Dyspeptic Spring, Burkeville, Nottoway County.

Healing Springs,Hot Springs

,Bath County.

Iron -Lithi a Springs,Tip Top

,Tazewell County .

Jeffress Spring,Jeffress

,Mecklenburg County.

Kayser Lithia Springs, Staunton, Augusta County .

Kiwassa Lithia Springs, near Manchester, Chesterfield County.

Landale Spring,near O cean V iew

,Norfolk County.

Lithia Magnesia Spring,Rocky Mount, Frankl in County.

Magee Chlorinated Lithi a Spring,Clarksville

,Mecklenburg County .

Massanetta Spring, near Harrisonburg, Rockingham County.

Mecklenburg Mineral Spring,Chase City, Mecklenburg County .

M i co Well,A lexandria

,A lexandria. County.

Mulberry Island , Mulberry I sland, Wai w i ck County .

Nye Lithia Sp i ings, Wytheville , Wythe County .

Otterburn Lith ia. Spring,near Ameli a, Amelia County

P aeonian Springs,P aeonian Springs , Loudoun County.

P ickett Spring,Worsham

,P rince Edward County.

Roanoke Li thia Spring,Roanoke

,Roanoke County.

Rockbridge A lum Springs,Rockbridge A lum Springs

,Rockbridge

County .

Rubino Heal ing Springs, Healing Springs, B ath County.

Seawright Spring , near Staunton , Augusta County.

Stribl ing Springs , Stribl ing Springs, Augusta County.

Tri pho M ineral Spring, Claremont, Surry County .

V i rginia Etna Spring, V inton , Roanoke County .

Virginia Lithia (Lion Mineral ) , near R i chmond .

Virgini a Magnesian A lkaline Spring, near Staunton, Augusta County.

Wal lawhatoola Springs, M illboro , Bath County .

Wyri ck M ineral Spring, Crockett, Wythe County.

There are 4 9 springs listed above,three of which produced in 1 9 1 1

that did not produce in 1 9 1 2 . These were D i amond Spring,Iron Lithia

Spring, and Kiwassa Lithia Spring .

ZIRCONIFEROUS SANDSTONE NEAR ASHLAND,

VIRGINIAa

BY THOMAS L . WATSON AND FRANK L . HESS.

INTRODUCTION.

In 1 9 1 0 Mr. August Meyer, of Richmond, Vi rginia, submitted to one

of the writers a specimen of rock obtained about three miles west of Ash

land,which was thought to contain rutile . It was a fine- grained fri able

dark reddish- brown rock,in which grains of ilmenite or some similar black

mineral were distinctly visible . The color of the other gra ins was appar

ently s imilar to that of the rutile found 1 0 to 1 5 miles farther southwest,in Hanover and Goochland counties, and under a hand lens no difference

in appearance could be distinguished . As the rutile of these counties

occurs with a very black ilmenite, it was thought that the specimen might

possibly be a fine- grained mass of titanium minerals. M i croscopic exam i

nation of a thin section, however, showed the rock to be a sandstone com

posed of very small grains of ilmenite and zircon ( z irconium sil icate,ZrSiO

4 ) , together with a few grains of other minerals, chiefly quartz and

silicates,cemented with limonite .

In June,1 9 1 1

,the writers

,in company with Mr. Meyer, Visited the

local ity from which the latter obtained the original specimen, on the farm

of Mr. F . B . Sheldon, 3 miles west of A shland , Hanover County, and about

20 miles north of Richmond .

GENERAL GEOLOGY OF THE AREA .

The area of Z irconiferous sandstone forms a part of the western edge of

the Coastal P la in,near and along the overlap of the sediments upon the

older crystalline rocks of the P iedmont P lateau ( see map, fig . A long

this edge ( the“fall - l ine$ ) the surface is somewhat roughened from erosion,

but to the east it becomes more gently rolling and i s e ssentially flat and

featureless . The area l ies on the south side of South Anna R iver, but

wi thin its drainage basin and only a short distance southwest of i ts

confluence with the North Anna to form P amunkey R iver .

aBu l l . 530-P , U . S. Geol . Survey , 1 9 1 2 ; al so Bul l . Phil . Soc . , Un iversity of

V i rgi n i a , Sc i en t i fi c Sect i on , 1 9 1 2 , vol . 1 , NO . 1 1 , pp . 2 67 -2 92 .

4 2 ZIRCONIFEROUS SANDSTONE NEAR ASHLAND,VIRGI NIA .

formation transgresses the underlying older Coastal P lain sedimentaryformations

,and its western margin rests upon the crystall ine rocks of the

P iedmont P lateau .

a The Calvert formation in Vi rginia i s about 200 feet

thick and consi sts c hiefly of sands, clays, marls, and diatomaceous earth,fine- grained sands being predominant . D iatomaceous earth has not been

identified in the A shland area.

Extending westward from the foot of the west slope of the low ridgementioned above are the cry stall ine rocks of the P iedmont P lateau

,chiefly

granites and gne i sses,most of which are of pre - Cambrian age . The con

tact between the sedimentary formations of the Coastal P lain and the crys

tal l ine rocks of the P iedmont P lateau extends across the State in roughlya general north - south l ine and in position nearly coincides with the

meridian 78 °

30’

.

lD

In the southern part of the State the Calvert formation is overlain bythe St. Mary

’s formation (middle M iocene ) , and along the western edge

the St. Mary’s transgresses the Calvert and rests on the cry stall ine rocks

of the P iedmont P lateau .

DISTRIBUTION AND OCCURRENCE OF THE SANDSTONE.

i n the A shland area the sandstone does not outcrop in a continuous

bed . It was seen only in the form of irregul ar flat fragments l y ing loose

upon the surface . The fragments are of the same reddish—brown to yel low

color as the specimen submitted by Mr. Meyer . In size the fragments

range from those as large as a man’s fist to some measuring 2 feet long, 2

feet broad,and 6 inches thick . There is as much variation in texture as in

si ze . and the rock accord ingly ranges from a t y pical fine- grained sandstone

to a typical moderately coarse conglomerate , with intermediate gradations .

Much of it i s very fine - grained showing littl e vi sible quartz . Other pieces

are of vary i ng degrees of coarseness, some containing quartz and quartzi te

pebble s 2 inches in diameter . Some pieces show cross - bedded structure .

The largest number of the sandstone fragments were seen on a small

mound 1 50 y a rds southwest of Mr. Sheldon’s house,and scattered frag

ments can be found both to the north and the south for a distance of half

a mile . On Mr. J . B . Davi s’s farm,which adj oins the Sheldon farm on

the north,there are many pieces of the sandstone , though most of them are

smaller . However many of the pieces, especi ally those found farthernorth are of lighter col or and lower specific gravity than the fragments

aV i rgin i a. Geol . Survey . Bull . NO . IV,1 9 1 2 , p . 1 2 6 et s eq .

bSee th e geologica l map o f Vi rgin ia , V irgi n ia Geologica l Survey ,Cha rlot t esvi l l e

1 0 1 1 .

TESTS. 4 3

from the Sheldon farm,though one of the ri chest specimens collected was

from the l ine between the Thomas Kie s and John Boschen farms, half a

mile north of the Sheldon farm . The specific gravity i s of value in field

examination,for specimens having low specific gravity show only a few

grains of z ircon,whereas those having high specific gravity carry a large

percentage of the mineral .

It i s probable that the hard lumps of sandstone represent the local

cementation of a sandy bed which, in most places, i s soft or but sl ightlyconsol idated

,a characterist ic of the Chesapeake group (M iocene ) . P artly

or wholly indurated sands, yielding somewhat highly ferruginous crusts

and beds of sandstone,are common in the formations of the Virginia

Coastal P lain near its western margin . So far as the authors are aware

these ferruginous sandstones have been generally regarded'

as composed

chiefly of quartz grains cemented by iron oxide . At no point beyond the

A shland area,so far as known

, h ave they been tested for z ircon or other

uncommon heavy minerals .

At the home of Mr. Benj amin Wright,three— eighths of a mile southwest

of Mr. Sheldon’s house,a highly Z irconiferous and but sl ightly consol i

dated sand bed was cut in the lower part of a well 1 4 feet deep . This bed

is probably the same one from which the indurated or hardened fragments

of Z irconiferous sandstone have come . P erfectly rounded water-worn

quartz and quartzite pebbles,mostly quartz, up to 3 inches in diam eter

and usually white in color, were taken from this well at a depth of 1 4 feet .

None of the Z irconiferous material was found south of Mr. Wright’s well,

and decomposed granite i s exposed in a road 200 y ards southwest of his

house .

A hundred yards northwest of Mr. Sheldon’s house a bed of Zi rcon i f

erous sand,similar to that cut in the Wright well

,was exposed in a

shallow prospect hole . The Z irconiferous sand was 1 8 inches thick andwas underlain by clay and covered by a few inches of soil .

From the appearance of the float and the sand cut in the prospect hole,

the Z irconiferous bed is thought to be probably not more than 2 to 3 feet

thick . The data at hand indicate that it is probably a narrow lens three

eighths of a mile long and of unknown but probably of less width .

TESTS.

The zircon was separated from six lump samples weighing from 50 to

1 00 grains each as follows : The lumps were first treated with hydrochlori c

acid to dissolve the cement of limonite . In two specimens small lumps

4 4 ZIRCONIFEROUS SANDSTONE NEAR ASHLAND, VIRGI NIA .

resisted dissolution and w ere treated with aqua regia on a steam bath for

two days, which resulted in dissolving the cement and disintegrating the

sand . grains . After washing by decantation the sand was digested with a

mixture of sulphuri c and hydrochloric acids to remove ilmenite and quartz

and then washed . The specimens thus treated yielded z ircon as follows

Zi rcon obtai ned from sandstone near A sh land,Vi rgi nia.

Loca l ity Z ircon

Specimen from l ow h i l l , F. B . Sh eld on’s farm . .

Specimen from low h i l l , F . B . She ld on’s farm . .

Sp ecimen from low h i l l , F. B . Sl i el don’

s farm . .

Specimen from 1 00 y ard s northwest of F. B .

Sh e ld on’s h ouseSpecimen from W righ t

’s we l lSpecimen from top o f h i l l on l ine b etween

Th omas Kies ’ and John B oschen’

s l and

A ccessory heavy m inerals in the form of impurit ies, such as cyanite ,garnet, and staurolite , could not be separated from the z ircon by the

method used,and the results given in the table above are perhaps 2 to 3

per cent too high,though certainly not more . Owing to possible losses

through the severe treatment during separation and to the loss of fine

z ircon in decanting, the tests are a s l ikely to show less as more than the

quantity present . The results are not,of course

,to be regarded as exact

,

but the method of selecting random specimens from float rock would not

warrant more accurate determinations .

It i s not thought that the method used in separating the material

introduced appreciable errors,as a blank test run on finely pulverized z ircon

by treating it with a mixture of sulphuric and hydrofluoric acids, showed

at the end of three days no trace of zircon in solution .

The z ircon crystals in the material are minute, averaging less than

mm . in diameter . Out of about 96 grams of z ircon separated,a small

quantity was caught on a sieve of 60 meshes to the l inear inch ; possibly1 per cent would not pass through a sieve of 80-mesh ; nearly 1 7 per cent

grams ) passed through an 80—mesh and was caught on a 1 00-mesh

sieve 7 7 per cent grams ) passed through a 1 00-mesh sieve and was

caught on a 1 50-mesh sieve ; and more than 2 per cent grams ) passed

l .

— Microphotograph of zi rcon sepa ra ted f rom sand ston e obt ain ed 3 m i l e s westof A sh land , V i rgin ia . Pa ssed th rough a. 1 50-mesh s i eve . Round i ng of th egra in s f rom w ea r i s show n , bu t i n manv ca se s the origina l c ry st a l out lin e canbe seen . Magn ified 9 7 diamete rs .

Fi g . 2 .

— l\'Ii croph otograph of zi rcon sepa rated f rom sandston e obt a i n ed 3 m i le s westof A shl and

,V i rgin ia . Passed th rough an 80-mesh sieve and caught on a

1 00-mesh sieve . Rounding of the gra in s from wear i s p ronounced . Largep ri smatic grain to right of cen te r i s cyanit e , Magn ifi ed 9 7 d i amete r s .

MICROPHOTOGRAPHS OF ZIRCON SEPARAT'ED FROM SANDSTONE .

CHARACTER OF THE SEPARATED ZIRCON CRYSTALS. 4 5

through a 1 50-mesh sieve . Most of the accessorv minerals ( impurities )can be caught on an 80-mesh sieve .

CHARACTER OF THE SEPARATED ZIRCON CRYSTALS.

The zircon crvstal s,a s separated above

,are mostlv of short, stout form,

th ough they include a smaller number of elongated forms, possibly one and

one—half times as long as thick . In mass they are pinkish or pinkish brown,but on heating to redness they become colorless . Under the microscope

individual crystals are pink or yellow,but much the largest number are

colorless . The crystal s in most specimens are very much worn, but the

crystals in the specimens from the prospect hole northwest of Mr.

Sheldon’s house show beautiful crystal form . Though nearly all of the

z ircon is undoubtedly worn, the wear in general may be in part apparent

only, as small z ircon crystals formed in p lace very commonly have outlines

that do not show good faces or angles . The difference in the amount of

wear of the particles which were caught on a 1 00-mesh sieve and of those

which passed through a 1 50-mesh sieve is striking ( see P l . I , figs . 1 and

The greater mass of the larger crystals small as they are seems sufficient

to cause much more fracturing from the force of impact when thrown

around by waves and currents .

ASSOCIATED MINERALS.

A ssociated with the z ircon are quartz and a. variety of heavy minerals,including garnet ilmenite

,rutile

,staurolite

,cyanite, and an isotrop ic

green mineral which has not been definitely determined but which may be

pleonaste or hercynite . Occasional fe ldspar and pyrite were noted in

several thin sections of the rock . A s stated above,these are all cemented

with limonite,possibly in part sili ceous .

Ilmenite is the most abundant mineral in the rich pieces and its grains

are of about the sam e size as those of z ircon . The quartz and cyanite

grains are generally several t imes as large . In places the fine- grained

z ircon and ilmenite surround quartz pebbles an inch long with the other

dimensions somewh at smaller .

No magnetite was found in the materi al .

MICROSCOP ICAL PETROGRAPHY .

The petrography of the rock is simple, but the general character of the

minerals and their relations to one another and to the cement are more

4 6 Z IRCONIFEROUS SANDSTONE NEAR ASHLAND,VIRGI NIA .

definitely established by microscopic than by megascopic study. Con

si dered as to mineral composition the ten thin sections of the rock studied

may be divided into two groups, ( 1 ) z ircon - ilmenite sandstone and ( 2 )quartz sandstone . The rounding of the ilmenite and zircon grains i s

pronounced,but the quartz sand is remarkably angular

a

( see P l s . I and

II ) . Both are cemented more or less firmly by oxide of iron, chieflylimonite and probably a less hydrous ox ide of reddish color, possibly gothite

or hematite .

Of the minerals present in the sandstone zircon,i lmenite

,and quartz

are the three most abundant, and are described below in the order named .

Occasional grains of an unstriated feldspar were noted in one or two of

the quartz - rich sections,and red to yellowi sh- brown rutile in partially

rounded grains of variable size is sometimes present,always in association

with ilmenite . Ferromagnesian minerals are entirely absent .

Zir con .

In the thin sections the z ircon is mostly colorless, though occasional

l ight yellow and pinkish crystal s were observed , and is readily identified

by its high refraction and double refraction . The grains usually show

rounded outline and many of them are nearly spherical . They range from

approximately equidimensional to elongate forms, and the angles or corners

of those that exhib it squarish to rectangular cross - section s usually show

more or less rounding ( P ls . I and II ) . Crystal outl ine i s f requentl v

observed but as a rule it i s modified by rounding from w ear . Zircon grains

separated from the rock and examined under the m icroscope usually show

rounding from wear and rather dull luster (P l . I figs . 1 and The most

perfectly rounded grains are apt to exhibit the least luster . The zircon

grains average from to m i n . in d iameter. Some of the larger

elongated grains measure as much as mm . in the d irection of elongation .

Some grains show cleavag e and manv indeterm inable inclus ions .

A fairly noticeab le feature in manv of the zircon grains i s an apparentirregular

,thin

,cloudy and l ight — colored peripheral zone or border

,which

appears i sotrop i c or but feebly double retracting . Thi s border probablyrepresents the pitted surface made by pounding against other fragm entsand possibly to some alteration from hv dration .

aTh i s i s i n a ccordance with the invest igat ion of Ma ck i e on the rounding of sandg rain s , w ho obse rved th at. gr ain s of z i rcon were rounded more r eadi ly than those of

qua r tz , due pos sibly to th e gr eat e r den sity7 of the zir con . See Mackie , Wm .,T ran s .

Edinburgh Geol . Soc 1 89 7 v ol . v i i,pp . 2 98 - 3 1 1 .

VIRGINIA GEOLOGICAL SURVEY. BULLET IN VIII PLATE II.

Fig . 1 . of a th i n s ect ion o f Z i rconife rous sand ston e obt a i ned3 m i le s w est o f A sh land

,V i rg i n ia . The gra in s of high r el i ef showing rounding

f rom wea r a re zi rcon ; the smal l e r . angula r , whit e g ra in s a re qua rt z ; and thebla ck groundma ss i s most l v i lmenite ; the whol e i s cemen ted with limon it e .

Mag nifi ed 9 7 d iamet e r s .

Fi g . 2 . of a. th in se ction of zi rcon —bea r ing sandston e obt a i n ed3 m i l es we st of Ashland , Vi rgin i a . Th e wh i te , angular gra i n s a r e mostlyqua rtz w i th a few of feld spar ; the scat te red round i sh gra i n s of high r e l i efa re z i rcon

,and the bla ck g roundma ss i s most ly limon it e, wh i ch forms th e

cement,wit h some grain s of i lmen ite . Mag nifi ed 9 7 diameter s .

ILMENITE, QUARTZ, CEM ENT. 4 7

Ilmeni te.

I lmenite i s most abundant in the z ircon - rich thin sections . It exceeds

zircon in amount and i s least in quantity in the quartz— rich sections, and

almost absent from some . It i s remarkably fresh , in grains of about the

same size as the z ircon grains,probably most of them a fraction larger

,

and of irregular though somewhat rounded outline .

Quartz.

Quartz is present in every thin section but varies greatly in amount

from occasional grains in the zircon - i lmenite - rich rock to the dom inant

and vastly the most abundant mineral in the quartz - ri ch rock . It is l ike

wise subj ect to much variation in size and shape of grain . The grains

generally range between and 1 mm . in diameter,though smalle r and

larger ones were noted,and in contrast to zircon and i lmenite are mostly

angular in outline . Well - rounded grains are not numerous .

The quartz grains are of granitic character and some contain abundant

liquid and sol id inclusions . Many of them show pronounced strain shadows

as the result of dynamic forces to which the original rock from which theywere derived was subj ected . The quartz gra ins in the same thin section

will usually average larger in size and more angular in outl ine than the

z ircon . The general character of the quartz grains i s shown in P late II,

figure 2 .

Cement .

In hand specimens the cement i s a decided reddish - brown color . In

thin sections it is opaque and generally brown in reflected light, and

occasionally transparent and deep red in transmitted l ight . It i s sharplydiff erentiated from the m ineral gra ins, which are remarkably fresh . No

gradation from the iron - bearing mineral grains into the cement was

observed , such as would be expected if the cement were derived by alteration

of those iron - bearing minerals present in th e rock .

GENESIS.

The z ircon and i lmenite concentration evidently represents an oldbeach segregation along but within the western margin of the M iocene

sediments of the Coastal P lain, of probably Calvert age, and i s s imilar to

the bl ack- sand beaches of New Jersey, California , O regon, New Zealand,

New South Wales,and numerous other coasts

,and to the gold - bearing

garnet ( so- called “ruby sands of the beaches at Nome,A l aska ( see fi g .

The zircon and other heavy minerals resistant to atmospheric agencies

were derived by weathering processes from the crystall ine rocks , chiefly

4 8 Z IRCONIFEROUS SANDSTONE NEAR ASHLAND,VIRGINIA .

granites and gneisses,of the P iedmont P lateau

,which extend westward

from the Coastal P lain contact . These formed the country rock of the

shore, and the z ircon and associated mineral s derived from them by

weath ering were accumulated by waters near the mouth of a smal l streamor behind a sheltered point

,while the quartz sand was largely worn and

ca rried away by the currents of the sea .

Zi rcon is an almost constant minor accessory mineral in the cry stallinerocks , especially granites and gneisses , of this old shore and its extensionw estward

,and in places it occurs in large masses . Thin sections of granites

occurring immed iate l y west of A shland and at other places in the P i edmontP lateau of Virginia show the presence of z i rcon . chiefly as inclusions in the

quartz and feldspa r. Near Gouldin post- ofli ce, 1 0 to 1 5 miles soutl'

i i-vest ofthe A shland a rea

,pieces of zi rcon 3 inches i n d i ameter weathered out of

peg i nati te dikes have been noted on th e surface . Massive zircon withoutcrvstal outl ine . measuring -l by 6 inch es, has been observed in the pegmatites

of Amelia County, Virginia . Similar dikes occur in the gnei ss—granite

c omplex of the P iedmont P lateau,form ing the old shore - line which extends

en tirely ac ross Vi rgin ia from Maryland into North Carolina,roughly

(co incid ing w ith the meridian of 7 7 ° The z ircon in the sandstone was

n ot derived . however, from the pegmatites in which it occurs in com

parat i vely large masses . but from the granites and gnei sses wh i ch carry it

Q

Fare -Cam b ria n granI I

Ih ‘

l

and gnei s s e s‘

s

f

,

Fig . 3 . ea st -west s ection a cros s th e fal l - l in e n ea r A shland V i rgi n ia ,i l lu st rat ing th e o ccu rrence of zi rcon -bea r i ng sand ston e .

in innumerable verv small crvstals . It seems probable that similar z ircon

rich sandstones mav accur at numerous points along this old shore - l ine .

Many zircon - bear i ng deposits may be covered by later sediments and some

mav have been removed by erosion, but it i s probable‘

that others,which

may be richer or poorer, will be discovered along the contact of the granite

and gneiss of the P iedmont P lateau with the overlvmg sediments of the

Coastal P l ain .

It is probable that some magnetite was present with the ilmenite,and

glauconite i s abundant at places in the Calvert formation . The altera

tion of e ither of th ese mineral s might produce limonite,which forms the

cementing material . An occasional pyrite grain was observed in one or

ECONOMIC ASPECTS. 4 9

two thin sections,and some hand specimens of the rock exhibit cavitie s

which suggest the removal by decay of some previously existing mineral .

From microscopic study of thin sections of the rock, it seems more probable,however

,that the principal source of the cement was chemical precip i ta

tion from iron - bearing waters that percolated or filtered through the sand

deposit .

ECONOMIC ASPECTS.

The uses of zircon enumerated below are largely suggested rather than

actual and their practicability i s mostly dependent on the cheapness of

the z irconia and the quantity available . Bohma states that large quantitie s

of native z irconia ( zirconium oxide ) known as baddeleyite are found near

Sao P aulo, Braz il, and that much has been shipped to Germany. This

material,at the time he w rote

,was being furnished at the following prices :

Composi ti on and pri ces of baddeleyi te.

P rice per t onDesignati on P 6 2 0 3 (2000 p ound s )

P er cen tZ i rcon— S— Erz

Zi rcon— Z— Erz

Z ircon— NS— Erz

aRema i nder E 20 .

The mineral quoted is in the form of oxide and for most purposes would

be more desirable than z ircon,which would have to be reduced to the oxide

,

and should sufficient native oxide be found to supply demands, competition

would be difficult for z ircon . For ferrozirconium or zirconium carbide

the z ircon could possibly be used without reduction to the oxide .

Should the demand for z ircon and further testing of the A shland de

posit warrant exploitation,operations could be carried on with comparative

ease . The rock crushes e asily ; the z ircon and associated heavy minerals

could be separated from the quartz by shaking tables, and the ilmenite

could be picked out by a magnetic separator .

The demand for z ircon is now small but, with the probabl e increased

use of zirconia (ZrOz ) , it will likely soon become greater .

Bohmb sums up the known and probable uses for z irconium substanti

ally as follows :

aBohm, C . R . , Di e Techni sche V e rwendung der Zi rconerd e, Chem . Zeitung,

Jah r 35 . Novembe r 1 4 ,1 9 1 1 , pp . 1 2 6 1 - 1 2 6 2 .

bBohm, C . R . Op . c i t . ,

pp . 1 2 6 1 - 1 2 6 2 .

50 Z IRCONIFEROUS SANDSTONE NEAR ASHLAND, VIRGI NIA .

USES.

Zirconia (Zr0 2 ) has been used in place of l ime and magnesia as theincandescing material in the oxy

- hydrogen blowpipe, and a very small

quantity of z irconium nitrate is used in making mantles for gas lights .

Large quantities of z irconia were once used in the Nernst lamps, a form of

incandescent electric lamp in which a small stick of zirconia and yttria i s

used as a glower,but its consumption is not now so large , owing to the

competition of metall ic filament l amps . Zirconium carbide has been used

in making incandescent electric lamps,but this also has been superseded

by metall i c filament lamps . The property of incandescence possessed byzirconia has tempted arc - lamp manufacturers to use it in their electrodes,but thus f ar it has not been used successfully. Zirconi a i s an excellent

insulator for both electric ity and heat and when mixed with a conductor

can be used f or electri c heaters . In the Heraea s i ridium furnace the

irid ium mav be protected by a glaze made from a zirconium salt in placeof the thorium or yttrium salts now used . Zirconi a makes an excellent and

very refractory crucible, which i s manufactured in manv sizes by a German

firm . Its refractoriness makes z irconia a suitable,l ining for electri c

furnaces,and Bohm suggests that it might be used for saggers

,but for the

ceram ic trade i t must be free from iron and cheap . He also suggests its

use for the walls of furnaces,for the making of molds to withstand high

temperatures,and for heat insulation . Owing to its inertness zi rconia

is suitable for chemical w are,and many forms are manufactured from it .

The same property has led to its recommendation for certain medicinal

uses,and in Rontgen ray therapy i t i s used in p lace of bismuth nitrate

,

which has sometimes given bad e ff ects . Zi rconia i s a beautiful soft white

powder which is well adapted'

f or making paints and lacquers,as it i s

unaffected by gases, acids, or alkalie s , and has good covering power . It

makes a good opaque glass,but for this use the borate is better than the

oxide . It i s used for a pol ishing powder in place of tin oxide . Ferrozi r

conium is manufactured by one German firm for use in steel . Zirconium

carbide i s extremely hard and makes a valuable abrasive . Glass 7 mm .

- inch ) thick is cut with it as read i lv as w ith a diamond .

Clear z ircons of browni sh,orange , or reddish color are cut for gems and

are then known as hyacinths . There is no probability of stones sufficientlylarge for cutting being found at the A shland locality, but they may be

present in some of th e pegmatites of the crystalline area .

GEOLOGY OF THE SALT AND GYPSUM DEPOSITS OF

SOUTHWESTERN VIRGINIAa

BY GEORGE W . STOSB .

LOCATION.

Large deposits of salt and gypsum are known to occur along a belt of

country 20 miles long running northeas tward from the Village of P lasterco,Va.

,and lying in Washington and Smyth counties . Much of this territory

i s in or near the valley of the North Fork of Holston R iver,and thi s

5 0 M i le s

Fig . 4 .

— Index map of southwest e rn V i rginia. Th e a rea desc r ib ed and mapp ed i n

th is r eport. i s ind icat ed b v th e shaded r ectangl e . Ra i l road conn ect ion s f o r th i sa rea on ly are show n .

portion i s made accessible to ra i lroad transportation by the Saltville branch

of the N orfolk Western Railway, which j oins the main line at Glade

Spring . The location and relations of this area are shown in figure 4 .

Two gypsum plant s and one salt or a lkal i w orks are now in ope rati on in

aRepub l i shed w ith rev i s ion f rom ( ontri but i on s to E conom i c Geology , 1 9 1 1 , U . S .

Geological Survey Bul l . - 530,Pa rt I .

5 2 SALT AND GYPSUM DEPOSITS OF SOUTH \-VESTERN VIRGI NIA .

thi s area . Numerous old gypsum workings and prospects indicate the

extent of the deposits,some of which are at present not commerc ial lv

workable because of lack of transportation facilities . The active mines,old w orkings

,and prospects are shown on the geologic map in figure 5 .

TOPOGRAPHY .

Th e area. represented on the accompanying map (fig . 5 ) comprises a

mountain ridge feet high separating parallel valleys and ris ing

above an adj acent deeply dissected plateau . The ridge,named P ine

Mountain at the southwest and Brushy Mountain at the northeast trends

in a general N . 70°

E . direction and its elevati on ranges from to

feet . It is cut nearly at right angles by several deep water gaps

through wh ich pass the w aters from Cl inch Mountain that dra in into theNorth Fork of Holston River. This stream flows southwestw ard

,in

general hugging the foot of P ine Mountain,and its valley descends from

an alt itude of feet at the northeast to feet in the soutl‘

iweStern

part of the area . The plateau to the southeast ranges from to

feet in altitude and i ts surface is dissected into narrow trans verse ridges

and rounded hill s .

GEOLOGY .

St ratigraphy .

The rocks in which the deposits occur are of Mississippian Lower

Carboniferous age . A generalized section of the Carboniferous rocksderived from several detailed sections in the vicinity of the mines is asfollows :

Generali zed secti on of Carbon i ferous rocks i n th e i‘ i ci ni ty of Saltvi l le, Va .

Newman l imeston e Fe et .

Ha rd a rgi l l aceous limeston e or ca lcareous sha le,w i th a

few beds of c ry sta l lin e limeston e . 400+R ed ca lca reous sand ston e and coa rs e c r i noida l l imeston e

,

with some beds of a rgi l laceousLigh t - blue to gr ay a rgil l aceous, Sha ly l im estone '

and cal

ea rcon s shal e,with a few thicke r fossil ife rous l ime

ston esLargely th i ck even -

gr ain ed blue fos si life rous l imeston e ,with some beds of c ry sta l l in e fossi life rous limeston e .

-t

5 4 SALT AND GYPSUM DEPOSITS OF SOUTHWESTERN VIRGINIA .

Th e basal black shale and reddish - sandy beds are not uncommonly exposed

in the lower spurs of P ine Mountain,but the earthy limestones and shales

of the formation are seen in few places . A few fossils have been foundin some of the thin calcareous beds and certain dark shales near the middle

are in places highly fossil iferous . At the base are coal seam lets and under

clay s that carry plant remains . The invertebrates have been assigned byGeorge H. Girty to the upper M i ssissippian, and he correlates the formation

with the Moorefi eld shale of A rkansas . It also probably represents the

low er part of the Mauch Chunk of P ennsylvania . In places plastic red

and oli ve to bluish cl ays with gypsum deposits occur in the midst of the

Macerady formation . Thei r occurrence and relations are discussed under

the heading “Origin of the Deposits,

$ on pages 64 - 73 . This formation

has been called the P ulaski shale in geo logi c reports describing ad j acent

areas to the northeast . and this name would be used here were it not that

P ulaski has a prior establi shed usage for an Ordovici an formation in

New York . The new name Macerady i s here given to the formation, from

the v illage of that name on the North Fork of Holston R iver,where the

best secti on of the formation was measured .

The Newman limestone i s calcareous throughout but contains Shalyportions which weath er readily to clay and soil . The l imestone generallymakes hill s

,which in most places assume rounded forms due to dissect ion

by Stream s flowing across the trend of the beds into the larger longitudinal

streams . The formation is highly fossil iferous and the fauna. indicates

its general equival ence with the Greenbrier l imestone of West Virgini a and

P ennsvl van i a and the Batesv ille sandstone of A rkansas .

P re- Carboniferous rocks are present in two tracts within the area

presented on the map (fig . Beneath the basal C arboniferous sandstone

lie Devonian sediments . mostly shales and sandstones, about feet

thick . underla in in turn by’

Si lurian sediments,also mostly shales and

sandstones . These are not differentiated on the map,as they do not

concern the problems here discussed . These rocks occupy the northwestern portion of the mapped area and form the slopes of Cl inchMountain

,which is capped by the basal Silurian formation, the Clinch

sandstone of Medina age .

In the southeastern part of the area mapped are Cambrian Strata,mostlv hard gray to blue magnesi an l imestone and dolomite, which are

also undifferentiated on the map . The oldest of these Cambrian rocks are

adj acent to the Carboniferous,with successively younger beds to the

southeast .

STRUCTURE . 55

Structure.

The Cambrian rocks on the southeast. are part of a great overthrust

mass which rode on a flat fault plane over the Carboniferous strata on

th e northwest,as Shown in the structure sections in figures 6 and 7 . The

Cam brian strata dip rather uniformly 30°

- 40°

SE .

,success ively older

Cambrian - strata appearing at the northwest . Massive gray dolomite and

magnesian limestone of C ambrian age are adj acent to the fault throughout

most of its course in the mapped area and probably form the competent

strata that carried the thrust . There is no indication of an anticlinal

axi s in these lower l imestones southwest of Saltville, where this formation

has a narrow outcrop,but northeast of Saltville there i s close folding in

the broad belt of this formation adjacent to the fault w ith all dips over

turned to the southeast . A stil l lower Cambr i an formation of red

argillaceous shale and sandstone i s exposed over part of this area . This

folded portion of the Cambrian mav represent the axis of an overturned

anticl ine,the breaking and overthrusting of which initiated the fault ing .

This i s no local or minor fault,however

,for it has been traced throughout

the southern Appalachians into the Rome fault . which has been demon

strated to have a horizontal displacement of at least 5 miles in the v i c in i tv

of Rome, Ga. A thrust fault of such magnitude and length must have a

deep — seated origin and its plane may be a shear plane cutt ing d i agonal lv

across the strata,without folding except that produced by frict ion or drag .

The fault plane i s exposed at several places in the area , dipp ing south

east,and its inclination varies from 20

° to F igure 8 i s a sketch of

the faulted rocks in the cl iff southwest of Macerady. Next to the fault plane

the dolomite of the overthrust. mass is hardened and the bedding obliterated

and the vertical bed s farther from the plane of movement are j ointed

parallel to the plane . The softer Shaly limestones beneath are mashed

and altered bv circulating w aters to cl ay adj acent to the fault .

Another section of the fault laid bare by old gypsum workings 2 miles

east of Broad Ford show s the Cambrian dolomite resting on red and green

ola v containing gypsum ,with 1 foot of black banded carbonized calcareous

clay gouge directly beneath the fault plane, which d i ps 20°

- 40°

SE . In

places‘

a dolomite breccia of large and small masses marks the fault contact .

In the railroad cut at P la sterco the cemented breccia i s freshly exposed

and its components are seen to be largelv dolomite, with minor fragments

of chert,limestone

,and shale .

Opposite Macerady Gap a mass of Cl inch sandstone of Si lurian age

and associated rocks of sufficient Size to make a hill 2 50 feet high and

nearlv 1 mile long was caught up along the fault and i s shown on the

m -ap ( fig 5 ) by the fault dividing west of North Holston .

Fig. 6 .

— St ructu re sect ion s ac ros s Hol ston V al ley along l in es ind icated by lett er s on

th e ma rgin s of the geologic map ( fig. On,Newman l imeston e ; Cmc,

M acerady format ion ; Cp , Price sand ston e ; SD , undi ffe ren t iated Devon ian andSi lu rian rock s ; 6 und iffe ren tiat ed Cambrian rock s

,most ly dolomit e . Scal e,

doubl e th e scal e of figure 5 .

58 SALT AND GYPSUM DEPOSITS OF SOUTHVVESTERN VIRGINIA .

K — K'

J — J'

H — H'

1 1 g 7 .

— St ructur e section s ac ross Ho l s ton V a ll ey along lin es ind i cat ed by l et te rs on

the margin s of the geologi c map ( fi g . On, Newman limeston e ; Cm c ,

M acerady format ion ; Cp , P rice sand ston e ; SD,undiff e ren tiat ed Devon ian and

Si lu r i an rock s : P. und i ff e ren t iated Cambrian rocks,most ly dolom i t e . Sca le ,

doubl e the sca l e of figu re 5 .

STRUCTURE SECTIONS. 59

The outcrop of the fault plane Is very crooked in the northeastern part

of the area, owing to the facts that the plane is very flat in most places

and is probably somewhat folded or wavy along the strike . Where the

fault l ies between the Cambrian

dolomite and the Shale of the

Macerady formation,it affords

favorable channels for circulating

underground water,from which

springs issue at many places,

and large solution channel s are

formed that may have aided in

breaking down and removing the

overlying dolomite at their out

lets along the fault and may have

assisted the formation of deep F ig. 8 .— Sect i on of the faul ted rocks i n the

cl iff southwest of M acerady , V a . a ,reentrants In the trace Of the Massiv e Cambr ian dolomit e , beddingplane , These reéntrants are ve rtical but indis tinc t, join t ing pa ra l le l

.

to

fault ; b , zone of a lt e r ed dolom i te,bedd i ng

un famably underlal fl by Soft en t i r e ly obl i te rat ed ; 0, zon e of - a lter ed andd ays of the Macerady formation )

“ c rushed a rg i l laceous material , bandedp ar al l e l to the fault ; d , e arthy limeston e

Whmh form 1 OW flats generally and ca l ca reous sha l e ( Carbon ife rous ) .

without rock exposures . The

reentrant at Saltville is one of the largest,and is entirely barren of rock

exposures . Another reentrant i s at Broad Ford,where there are only a

few outcrops of the lower harder beds in the Macerady. Northwest of

Chatham Hi ll i s a st ill larger reentrant,due to the flattening of the

general structure and a corresponding wider exposure of the softer rocksafter being stripped of the overthrust Cambrian dolomite . These reentrant

areas are the chief places where salt and gypsum deposits have been found

and are of especial interest in the study of the distribution and origin of

these products .

The rocks northwest of the fault,except those immediately adj acent

to it,l ie in a monocline

,dipping 2 5 °

- 40°

SE .,which culminates in Clinch

Mountain,northwest of the area mapped . The soft Carboniferous rocks

near the fault are bent into an overturned syncline . The sections in

figures 6 and 7 illustrate the progressive rise in this syncl ine from

southwest to northeast . As the Newman limestone ri ses northward in

the shallowing syncline, erosion has removed its upper portion and it s

remnant gradually diminishes in thickn ess from feet in the most

southern section until northe ast of Saltville it i s entirely absent . The

60 SALT AND GYPSUM DEPOSITS OF SOUTHWESTERN VIRGINIA .

soft underlying Macerady formation does not extend all the way along

the southeast side of the syncline , but is faulted out in the southwestern

part of the area . Where present on the southeast Side it i s vertical or

overturned .

No outcrops are vis ible in the broad flat at Saltvi lle , but the absence

of hard outcropping strata and the record of only soft rocks of Macerady

type in the deep wells at this p lace indicate that the syncl ine is followed

on the east by an anticl ine whose east l imb carries the P rice sandstone

below the points reached by the drill but apparently not deep enough to

bring the Newman limestone down to the surface , so on the sections the

rocks are shown to be undulating in the portions under cover of the

overthrust fault .

Northeast of Saltville the beds of the Macerady formation are so poorlyexposed that their attitude is not generally Shown . At the cliff west of

Macerady the last clear exposure of the syncline is preserved in the ledges

of shale and sandstone . Just east of North Holston a small anticl inal

roll of thin limestone in the Macerady i s an indi cati on of the undulations

probably exi sting throughout thi s band of soft rocks . East of Broad Ford

a. similar gentle fold i s exposed in the small stream gully crossing the

lowland .

Farther northeast the structure flattens more and more,and in the

reentrant northwest of Chatham Hil l a thin l imestone in the Macerady

formation indicates a very gentle syncline, followed on the southeast bya gentle anticl ine and another syncline , which is sharply turned up at

the fault . The gentle syncline is also Shown in the southward swing of

the P rice sandstone outcrops forming Brushy Mountain at the northeast

end of the area mapped .

From the overturned syncl ine of Newman limestone at the southwest

it might at first be concluded that this was a syncl ine associated with an

overturned anticl ine on the southeast,which broke and was thrust over

upon the syncl ine . However,it is concluded from a wider study of the

structure that the fault did not originate in a broken fold but is of deeper

seated origin , being manifest by a shear plane cutting diagonally across

the strata and folding and crumpling those at the overridden contact bv

reason of friction and drag.

62 SALT AND GYPSUM DEPOSITS or SOUTHWESTERN VIRGINIA .

of the North Fork of Holston R iver,about a mile distant

,where it is

converted into baking soda and the other sodium products ;

For the conversion of salt to these compounds l arge quantities of pure

calcium carbonate are used, and an aerial bucket tram carries crushed

limestone from the company’ s quarry 3 miles southeast across the limestone

hills . As the l imestone must be free from magnesium and other impurities,satisfactory rock is d iffi cult to obtain in quantity. P art of the present

supply comes from quarries at Marion,Va.

,about 2 5 miles distant by

rail on the main l ine of the Norfolk Western Railway. About 600 tons

i s used dailyGypsum.

Gypsum has been used for fertilizer for many years, and as early as

1 835 the great possib ilities of this deposit as a source of supply for the

agr i cultural lands of Virginia were recognized . Over a decade ago gypsum

was converted to plaster of P ari s by roasting on only a small scale, as the

product did not then have wide usage,but the adoption of this kind of

pl aster for walls in buildings,especially as a finishing coating

,because

of its superior hardness and whiteness,has made i ts production a large

and profitable industry. When mixed with cement it acts as a retarder,

greatly increasing the value of that product, and for gyp sum to be used

in this way there i s now a large demand . AS land plaster or fertil izer

the gypsum is simply ground and not roasted . It has proved verybenefi ci al

'

to certain soils and for certain crops, being highly recommended

for peanut cultivation .

P resent dec eloznn ent— Two gypsum companies are operating in the

area at the present time . The United States Gypsum Co.,with off ices in

Chicago,leased the Robertson tract

,adj oining the Mathieson A lkal i Co .

’s

property on the southwest, from the Buena Vista P laster Co . and has been

operating for the last few years . This plant is located in a narrow exten

sion of the broad flat at Saltville, separated from it by a low divide .

Two shafts furnish access to the workings,which are reported to be about

1 00 feet below the surface,each set of workings seeming to be in a distinct

body of gyp sum . A third abandoned shaft leads to another mass of the

deposit,and as other new bodies are located by drill ing over the bottom

land additional shafts will be sunk . Large deposits of gypsum on the

eastern edge of the tract directly adj o ining the Mathieson property were

previously worked out by the owners .As just mentioned

,the gypsum in this mine seems to be in detached

masses of great size and not in continuous beds,as might be expected .

SALT AND GYPSUM I NDUSTRIES. 63

This will be referred to again - later under the heading O rigin of the

Deposits . The gyp sum is mostly a whi te to gray granocrystal l ine rockinclosed in clay, the gray variety streaked with fine dark argillaceousmaterial . Numerous small anhydrite crystal s are scattered through some

of the gyp sum from the old southernmost Shaft,and these appe ar more

prominently on weathered specimens . The gypsum is brought to the

surface by elevators and conveyed by tram cars to the company’ s mill

,

where it i s roasted and pulverized . The molding of pl aster bricks,tiles

,

and hollow blocks in the company’s Shep i s a new branch of the industry

in this region .

The Southern Gypsum Co .

’s plant and ofli ce are at North Holston,reached by the company

’s branch railroad from Saltville . The mine is

on the old P ierson p laster- bank farm,in one of the embayments of lowland

adjoin ing'

the North Fork of Holston R iver which is underlain by the softshales of the Macerady formation . The shaft in the lowland is conn ected

by an aerial bucket tram with the main roasting and grinding plant at

the railroad on the hills ide . A large part of the crude product is ground

for ferti lizer at the lower mill near the shaft,much of the gyps iferous

clay being of the right mixture to be used in this way for land plaster,effecting agreat saving in the expense of mining . For wall and finishing

plaster and cement retarder only the purer lump gypsum is employed .

The bulk of the gypsum here i s much l ike that at the United StatesCo .

’s plant,granular and crystall ine . Some large sheets of pure selenite

are encountered,and small veinlets of satin spar are common in the clay.

Large masses of black argilla ceous materi al called “black rock$ occur inthe midst of the gypsum,

and apparent bedding of the gypsum is indicated

by banding of black grains of the same materi al . The gyp sum is reported

to occur in beds of considerable thickness and extent and not in i solated

masses,as at the United States Co .

’s mine . The deposits have been tested

by bore holes over all the river bottom of the embayment . The beds varygreatly in thickn ess, however, being somewhat lenticular in shape . The

gypsum formerly outcropped at the river, where it was mined in open cuts

in the early days for fertilizer . It is now mined from the shaft in the

bottom land in all d i recti ons'

at a maximum depth of about 1 00 feet .

Deposi ts not at present uti li zed— O ld partly filled p its where gyp sum,

or “plaster,

$ as it is commonly called, was mined from the surface in

earlier days are visible all along this belt from a point a mile west of

P lasterco to the vicinity of Chatham Hi ll .'

Large quantitie s of good

gypsum still remain in these old workings . Near P lasterco large p its,

6 4 SALT AND GYPSUM DEPOSITS OF SOUTHWESTERN VIRGINIA .

abandoned shafts,and caved - in ground abound, marking the places where

the Buena V ist a Co . and the Robertsons formerly operated extensively and

removed much of the available gypsum that was close to the surface .

Smaller openings were made in the embayment about 1 mile to the south

west,but the deposits there have been only slightly explored . They are

all owned by the old Buena Vi sta Co . and are leased to the United States

Gypsum Co . In the Saltville Valley thick deposits of gypsum are reported

in all the wells drilled for salt,and some beds at the surface w ere formerly

mined for the manufacture of a kind of cement . They are owned by the

Mathieson A lkal i Co . and are not now being worked .

At North Holston and in the embayment j ust east of it several old

gypsum p its formerly worked on the P ierson and Miller farms are nearlyobliterated . Several old pits are to be seen also near Broad Ford, some

to the west but most of them in the broad embayment to the east . One

is sti ll open in the river bank on the Taylor farm ,about a mile east of

Broad Ford,where the gypsiferous shales have been dug out from beneath

the overthrust Cambrian dolomite . Another p it on the Taylor farm is

among the low hills to the northeast,beyond the point where the North

Fork of Holston R iver leaves the belt of the Maccrady formation . A shaft

on the adj acent Barnes place opened a large deposit by drifts but i s now

abandoned and filled with water .Northeast of the Taylor farm conditions continue to appear favorable

for the occurrence of gypsum ,except that the exposed area of the Macerady

formation is narrow,but gypsum is not known to have been reported in

the next 3 miles . Beyond , however, on the Buchanan property, important

deposits occur and were mined on a large scale and crushed in the com

pany’s mill on the property. The smaller holes have fallen in and been

filled up,but some of the larger ones are full of water and are reported

to be very deep . P its are scattered over the broad embayment in the

Maccrady.

formation not only in the Locust Cove Creek bottom but also on

the low divide and small val ley to the west . Several pits were also located

north of Chatham Hill,and the crude gypsum was crushed in a water

power mill on the river at Chatham Hi ll .

ORIGIN OF THE DEPOSITS.

Former Vi ew s .

In his early description of these deposits W . B . Rogers correctlyidentifies the beds inclosing them as “Lower Carboniferous$ and states

further that they are at the fault contact between these beds and olde r

ORIGI N OF THE DEPOSITS. 6 5

l imestones . As to their origin he adopts the explanation that oxidiz ing

iron pyrites in the shales produced sulphuric acid, which, acting on lime

stone,converted i t into calcium Sulphate . He says :

a

In sp ecul at ing upon th e origin of th e gyp sum of th i s regi on , th e r ead i estexp l an at ion that suggest s it sel f i s that wh i ch ascribes i ts p roduct i on to Sim i l a rcauses w i th those which gave b i rth to the gyp sum of the Te rtiary st r ata of lowerVi rgi n ia . It h as been in cidenta l ly remarked above that pyritous s late occur s i nf ragmen t s mi ngl ed with the gyp sum and c l ay of the s alt wel l s and othe r p l ace s .

Suppos i ng th e va l l ey to have once been fi l l ed with th e debri s of th i s S l ate and of

th e n ei ghbori ng limeston es , w e would have all th e mat e ria l s b rought togethe r wh i chare n ece ssa ry for th e p roduct ion of the gyp sum ,

whi l e th e S l a t e a fter decompos i t ionwould become th e c l ay ey mat rix i n which th e c ry stal s would col l ect . This View i s

render ed more p robabl e f rom the occur ren ce , even in th e m i d st of the solid massesof p l a st e r , of fragmen t s of the s i l i ceous rock wh i ch sk i rt s th e val l ey on the south .

I t i s at l east ce rtain t hat the gyp sum ha s not been depos i t ed here,as in some

othe r part s of th e wor ld,from the wat ers of the rmal Sp rings hol ding i t in solut i on ,

since i n that case i t would be found dispos ed in l ay e r s as t r aver t i n e an d not i n th ei r r egula r and scatte red cond i tion wh ich h as been desc ribed .

J . J . Stevenson,b in 1 885

,after describing the mining development

,

occurrence, and distribution of the gypsum and salt, arrives at somewhat

Simila r conclusions,as follows

1 . The gyp sum d eposit s are not bed s of Ca rbon iferous or Cambro-Si lu rianl imeston es ch anged i nto gy p sum .

2 . These depos i t s occupy deep ba s i n s , wh i ch have been e roded in Lower Ca rboni ferou s Sha le or limeston e or i n th e hard

,sl i ght ly cal ca reous sandston es of th e

Knox group . In at least two loca lities b ranche s prot rude f rom the ma in body intod rain s or r av i n es , so that th e hor i zon tal p l an r esembl e s somewhat the sp l a sh madeby th rowing soft mud aga i n st a wal l .

3 . The cha rac te r of th e deposit i s whol ly i nd ep enden t of the rock s on wh i chi t r est s .

4 . The gyp sum occur s i n i r regula r masse s , in cased i n red marly c l ay ,wh i ch

p en et rat es th e gyp sum to a var iabl e d i stan ce ; the re i s l e ss of th i s c l ay i n the

east e rn ba s i n s than at Sal tv i l l e .5 . A t a va riab le depth sa lt occurs with the gyp sum ,

and th i s sal t con t a i n s .

very lit t l e of i od i des or b rom i des .6 . B lue c lay over l i e s th e gyp sum at a ll local i t i es yet exam i n ed .

7 . No fossi l s of any sort have been found thus fa r i n th e gyp sum ,i ts i ncas i ng

red c l ay, or in the overly ing blue cl ay ; but just west from Sal tvi l l e a cong lomeratec emen t ed by gyp sum occu rs , in wh ich r ema in s of Mastodon have been found ; th i sover lies the blu e c l ay and inc loses many f ragmen t s of both blue and red c lay .

8 . These gyp s i fe rous deposit s occur i n the v i c in ity of th e Sa l tvi l l e faul t .

But th e amoun t of the e ros i on and the gen e r a l r e lat i on of the gyp sum to theb lue c l ay , w i th th e r el at ion of th e l at t e r to th e Quate rna ry conglomerat e , suggestthat the gyp sum i s not olde r than the Te r t i ary ; un t i l some fossi l s have beend iscovered , howeve r , the question of age must b e r ega rded as undeterm i n ed .

Cap el lin i asc ribes th e format ion of thi s gyp sum $at Ca stel lin a Mar i t tima ] tothe act i on of sulphur Sp rings on calcium carbonate he ld in solution ; so that th e

aRogers , W . B . , A rep r int of annual report s on the geology of theV i rgi n ia s , 1 884 , pp . 1 4 1 - 1 42 .

bP roc . Am . Phi los . Soc .,vol . xxn

, 1 885 , pp . 1 57 - 1 60.

6 6 SALT AND GYPSUM DEPOSITS OF SOUTHWESTERN VIRGINIA .

ca rbonat e was changed i nto sulphate and deposit ed as such i n th e lit tora l lake s of

the m iddl e Miocen e . The origi n of the Hol ston gyp sum i s to b e accoun t edfor i n some s imi l a r w ay . Seve ra l d eep ba sin s we re occupied by l akes ; that of th eSa l tvi l l e ba sin r eceived not a l i tt le ca lca reous mat t e r f rom the Lower Ca rbon ife rousbed s forming i ts northe r ly shore , and some doubtl es s was rece i ved f rom the washof the Knox bed s on the southe rly shore ; in the bas i n s fa rthe r ea st the calca r eousmatte r de r i ved f rom the wash should be fa r inferior to argil l aceous matt e r . Butthe composit ion of th e gyp sum shows l es s of the red c l ay at Buchan an

’s than atSal tvi ll e . The p r i ncipal source of the ca lca r eous matt e r must b e looked for not in

the wash from the shor es but i n sp r i ngs . That cal ca reous sp rings can p roduced eposit s a s exten sive as thos e of thi s r egi on i s sufficient ly shown by the ext en sivedeposit s a round many of the sp rings at the fa r W e st . The calc i um ca rbonate i n

solut ion would be conver ted in to calcium sulpha te by the sulphurous sp rings a lsoi ssuing f rom the faul t

,and th e gypsum would be d epos i ted a s such .

Th e r ed ma rly c l ay s were d er ived f rom the wash and a re more abundan t atSal tvi l l e, where the soft r ed sh al e s at th e top of th e Lower Ca rboni fe rous a re ful lyexposed on the northe rly s i de of the b asin .

E . C . Eckel,

a in 1 902,concluded that the deposits were interbedded as

original sediments in the “Lower Carboniferous$ :

Though the sal t and gyp sum d epos i ts h ave been long known and worked andhave been exam in ed by many geolog i st s , a w i de range of opinion exist s a s to the i rage and origin , a s w i l l b e se en on compa ring the l it e rature of the subject . I t i ssuffi cien t i n this p l ace to note that

,as to age, the deposit s have been var i ous ly

r efer red to th e Silu rian,Ca rbon ife rous , T riass i c , Tertia ry ,

and P l eistocene , wh i l ed iff e ren t authoritie s have con sid e red them as or iginat ing from deposition f rom sea

wate r , f rom deposit ion from lake s , by the decomposit ion of py rite and result inga ction on f ragmen t s of l imeston e , or by the a ct i on of sulphu r sp r i ngs on unweathe redl imeston e .

The work of the l a st fi eld sea son would seem to p rove tha t both the sa lt andgyp sum deposit s originat ed from deposition , th rough the evapora tion of sea wat e ri n a pa rtly or en ti r e ly inc losed ba sin , and that th ey a re of Lower Ca rbon ife rous age,being immediat ely ove r la in by the mass i ve bed s o f th e Greenbr ier l imestone andunderl ain by Lower Ca rbon ife rous sandston es .

Observ ed R el at ions .

The most striking fact in connection with the gypsum and salt deposits

of this district i s that they have been found in quantity only in the shales

of the Macerady formation along the Saltville fault . These shales also

outcrop along the North Fork of the Holston southwest of Saltville,on

the west side of the syncline , but so far as known neither gypsum nor

s alt has been observed in this area of the formation . Stevenson reported

gypsum on both sides of the fault on the M iller and Buchanan tracts

northeast of Saltville,but these observations seem to be in error in that

the fault was not accurately mapped, which is not strange , for the altered

Carboniferous limestone very closely resembles the Cambrian dolomite ,and some of the red shales of the Cambrian closely resemble those of the

Carboniferous .

aBu l l . U . S. Geol . Survev No . 2 1 3 , 1 903 , p . 406 .

ORIGI N OF THE DEPOSITS. 6 7

An eff ort has been made to obtain a carefully measured section of the

Macerady formation to determine the posit ion of the gypsum and salt

bearing beds,but with scant sri ccess . In the broad flats where the gypsum

occurs there are generally no outcrops except red clay and gypsum,and

consequently there is l ittle hope of solving the relation southwest of

Saltvi lle . Not even the base of the Macerady, which i s the most definite

key horizon, i s exposed there .

Northeast of Saltville there are a few good exposures, but generallywhere the gypsum occurs the inclosing rocks are soft cl ays and are hidden .

The river cliff southwest of Macerady i s the best exposed section of these

beds in the area,and the following detail s were measured there :

P arti al secti on of Macerady formati on west of Macerady,Va.

Da rk c rumbly fos si life rous sha l e and ea r thy gr ay limeston esA lt ernate thick e arthy l imeston e cal ca reous Shal e, and th in c rystal l i ne

fos si l ife rous l imeston esMa ssive - bedded bluish tough cal ca r eous and a rgi l l aceous sandston e with

fos s i life rous cal ca reous lay e rs .

Gr ay sand ston e , weather ing b rown .

Shaly earthy contor t ed sandy limeston eHa rd th i ck - bedded bluish calca reous sandston eSofte r Shaly earthy sandstoneTh ick bed of ea rthy s andstoneHa rd impur e l imeston e, w i th chert nodulesTh i ck soft e arthy s and ston e . .

Shaly ea r thyTh i ck - bedded to Shaly earthy sandston eCovered

, probab lv some red shal e , Shaly ea rthy l imeston e, and soft ea rthysand ston e

R ed Shaly s andston e and Shale , mot t l ed yel lowRed sha l e i n part , r est cove redRed Shaly sandston e, mott l ed ye l low .

Shaly gr ay sand ston e , with phosphatic fi sh p late sSandy sha le , in pa rt cove redSoft shal e , light bufl

'

to da rk d r ab ; light -

gray fi re c l ay w i th root let sle aves , and twigs at ba se

B l ack coaly fi ssi l e shale .

Sl abby blue even -

gra in ed i r r egula r -bedded s andston e , weather ing buff ( topof P rice sandston e ) .

68 SALT AND GYPSUM DEPOSITS OF SOUTHWESTERN VIRGINIA .

The next best partial section is j ust east of Watson Gap, 2 miles

southwest of Broad Ford,which Is as follows :

P arti al secti on of Macerady formati on eas t of Watson Gap, Va.

Th i n -bedded ea rthy l imeston e , with some ha rd den se bedsPurp l e fi ssi l e shal e

,with some ea rthy l imeston e s

Fi ssil e r edMicaceous red sandston e , mott l ed y el lowFi ssil e and c rumbly r ed Shal e, mot tl ed y ellowHa rd y el low and red agglomera tic sha leC rum bly r ed sandston e and some y el low shaleHa rder red sandston e, i n pa rtRed a rgil lit e and sha le , with d rab sandy concret i onarv masse sGr een i sh fi re c l ay ,

with root l et s , r ed at su rfa ceC rumbly and fi s si le r ed and y el low shal e .

Soft greeni sh m icaceous sandston e , purp l ish a t topSoft y el low shal eB l ack fi s sil e coa ly shal eThin s and ston e and fi r e c l ay, with root l et sGreen ish fi s si le shal eThin i r r egula r -bedded sandston eSandy light -buff fi re cl ay, with root l e t sCovered , p robably th in sandston e an d shaleMassive -bedded g reen ish -

gray ca l ca reous sand ston e ( top o f P ricesandston e ) .

Just east of Broad Ford is another fair exposure that shows the

relations of the gyp siferous shales to the rest of the formation :

P arti al secti on of Macornay formati on eas t of Broad Ford , Va.

Thickn es s

Feet .

Soft r ed and gr een shal e andcl ay ,

with some soft thi ckb rown sandston e and ea r thyl imeston e W eathe r or change l at e ra l ly i nto

Red a gr een shal e .

gyp sum -bearing red p l a stic c lay s withRed ri pp l ed s and ston e s econda ry l imeston e l ay er sGray shal e w i th red sandston eb ed

Red shale.

and sandstoneGray sh al eThin b lack fi s sil e coa ly shal e .

Ea rthy l imeston e and ca lca reous sha l eCove red

,p robably i n pa rt soft earthy limeston e

Red sandston e and sandy shal e (with un expos ed gray sandston e , sha le ,and carbon aceous seams to base of format ion ) , estimated

70 SALT AND GYPSUM DEPOSITS OF SOUTHWESTERN VIRGINIA .

The distribution of gypsum throughout several hundred feet of strata

in the wells at Saltville and P lasterco indicate s that, even i f the beds have

a relatively steep dip, the gypsum has a wide vertical range in the south

western part of the area and may replace higher beds in the formation

than occur at the surface in the northeast .

Conclusions.

It can not be determined posit ively from the well records whether the

deposits are in thick cont inuous beds or,as has been found to be the

condition in the mines at P lasterco,In detached segregated masses . The

dist inct interbedding,however

,of the gypsum with limestone

,shale

,red

clay, and rock salt in the Saltville wells precludes the idea that the

deposits were formed in wash from the surrounding higher area s into a

trough or lake,as suggested bv Stevenson . The gypsum beds have nowhere

been mined deep or far enough to determine how they change laterallyinto other sedimenta ry rocks . This must be inf erred from such facts as

can be gathered in the mines,on the surface

,and in the well records .

The conclusion expressed by Eckel that the deposits are stri ctly sedi

mentary in origin, having been derived from the evaporation of confined

bodies of water under salt - pan conditions,i s believed by the writer to be

only partly correct . The fact that the beds of alm ost soli d gypsum50 to 1 00 feet in thi ckness vary greatly, occurring at intervals along the

belt of these rocks,with barren areas between

,and

,so far as kn own

,not

at all on the northwest side of the syncline away from the fault, does not

harmonize with this view . That salt - pan conditions could be so local and

st ill persist for so long a time as to form such thick beds of gypsum and

that these conditions could be repeated over and over again in the same

place while not occurring at all in intervening areas i s highly improbable .

The facts that the gypsum is segregated in workable deposits in theMacerady formation at intervals along a fault contact, with barren areasbetween, and that none occurs in the same formation, so far as known,where not adj acent to the fault

,are more reasonably explained by assuming,

first, that gypsum was originally deposited as disseminated grains and

innumerable thin leave s with argi llaceous and calcareous silt and earthysand of the Macerady formation in a partly inclosed arm of the sea, at

times subj ected to intense evaporation ; second, that the gypsum was later

concentrated in the same formation by ground waters, which, circulating

along the fault, dissolved part of the dissemin ated calcium sulphate and

redeposited it in adj acent gyp s iferous beds, the gypsum being segregated

ORIGIN OF THE DEPOSITS. 7 1

by chemical sele ction . The calcium carbonate in the calcareous Silt was

likewise di ssolved by the meteoric waters and the -

gypsum has taken itsplace, possibly by direct replacement, the waters, being carbonated, dis

solving the calcium carbonate and depositing the calcium sulphate .

A sample of unaltered earthy limestone from the horizon of the gypsum

bearing clays of the Macerady formation near Broad Ford was analyzed for

F . A . Wilder, president of the Southern Gypsum Co.,and was reported to

contain 4 per cent of CaSO4 . Another sample from the limestone quarryacross the river from the Mathieson A lkal i works

,analyzed in the chemical

laboratory of the U. S. Geological Survey, showed per cent of CaSO4present . This may represent the amount of d i sseminated g ypsum present

in the original calcareous Silt .

In addition to the facts mentioned above pointing to this conclusion,several other observations may be cited . The occurrence of large crystall ine

Sheets of selenite in the granocrystal l ine mass and especially of small ve inlets

of satin Spar in the otherwise barren inclosing clay, affords posit ive proof

that solution and redeposit ion may have taken place to some extent . The

massive gypsum has the appearance of bedding, due to the banding of grayimpurities

,but on close observation this i s found to be not sedimentary

banding parallel to the inclosing strata but concentric banding parallel to

inclosed bodies of “black rock,

$ fine particles of the argillaceous material

producing the dark banding . These argillaceous masses may have resulted

from less soluble clayey masses in an otherwise calcareous gypsi ferous bed

which was gradually encroached upon during the concentration of the

gypsum and particles of it were left as banded impurities in the gypsum ;Similar drab argill aceous concretionary masses were observed in the red

argill ite 94 feet above the base of the Macerady formation on the road east

of Watson Gap . O r,on the other hand

,the argillaceous impurities may

have been segregated in the rounded masses by chemical repulsion during

the concentration and purification of the gypsum . At least,both the

banding of the gypsum and the rounded masses of argillaceous “blackrock$ appear to have resulted from the secondary segregation of the gypsum .

The red plasti c clay that generally incloses the gypsum is probably the fine

argillaceous impurity of the earthy l imestone left as a residuum,expelled

by the crystall ine segregation of the gypsum, and stained“red by contained

iron highly oxidized when set free during the process . Thin layers of fine

grained limestone in the gyps iferous clays Were apparently redeposited from

solution as another secondary mineral .

This theory as to the method of the concentration of gypsum is not

new,for it has been proved beyond much doubt that the remarkable domes

7 2 SALT AND GYPSUM DEPOSITS OF SOUTHWESTERN VIRGINIA .

of salt and gypsum in Louisiana and Texas were formed by the deposition

of these mineral s along spring l ines at the exposed intersection of fissures

or f aultsflL having been dissolved and transported from some deeper- lying

beds . Secondary l imestone , apparently s imilar to the crackled layers in

the clays of the Holston Valley area, also occur in the domes associatedwith the salt and gypsum . The fact that the Louisiana deposits were

derived from lower beds suggests the possib il ity that the salt and gyp sum

in the Holston Valley area were also derived from beds at a lower horizon,that the solutions rose along the fault

,and that these minerals were

deposited at or near the surface in their present posit ion . This explanation

however,is untenable

,inasmuch as none of the older formations which

outcrop to the west on the Slopes of Clinch Mountain— not even the

representative of the Sal ina,the great salt and gypsum bearing formation

of New York— contain deposits from which these minerals could have beenderived

,and furthermore

,as such strictly secondary deposits would be

found only at or near the surface, whereas the Holston Valley deposits

occur interbedded in the Maccradv formation to considerable depths .

If the theory of secondary concentration above suggested is the correct

explanation of the origin of the gypsum in the Holston Valley area, it

accounts for the absence of the mineral in quantity on the west s ide of

the syncl ine away from the fault, the occurrence of natural outcrops of

gypsum close to the fault, and the greater thi ckness of the depos its toward

the southeast as developed by borings in the Saltville , P l asterco, NorthHolston

,and other tracts tested . In accordance with this theory it may

be predicted that, the gypsum will be found to extend under the overthrust

Cambrian dolomite as far as the Macerady formation is at the fault contact,and when the deposits near the surface are worked out deeper mining may

be carried in this direction .

The beds of rock salt undoubtedly had the same origin as the gyp sum

and may be regarded as concentrations of somewhat saliferous beds, the

associated calcium carbonate of the earthy l imestone being dissolved out

and its place taken by salt , segregated by solution and redisposition

th rough chemical selection . Whether workable beds will be found assoc i ated with all the gypsum deposits can not at present be determined

,

but where salt has not been encountered in min ing the gypsum there is

still a prospect that it may be discovered at greater depth close to or under

the overthrust dolomite . This is especially true southwest of Saltvil le,

aHarri s , G. D. , Rock sa l t : Bull . Lou i siana Geol . Survey No. 7 , 1 907 ; Oi l andgas in Louis i ana : Bull . U . S. Geol . Su rvey No. 4 29 , 1 9 1 0.

SUMMARY . 73

w here the overriding Cambrian l imestone conceals most of the Maccrady“formation, as it i s apparently turned under in a minor anticl ine next to

the fault . Southwest of P lasterco both salt and gypsum may be expected

along the fault some distance from its outcrop under the overthrust mass

w here the Macerady formation i s probably at the fault contact . This may

be proved by either drill ing through an unknown thickness of toughd olomite southeast of the fault or boring diagonally under it in the soft

rocks at the fault contact .

SUMMARY .

The gypsum and salt deposits of southwestern Virginia described in

this report are believed by the writer to have been derived from calcareous

argillaceous sediments which originally contained disseminated gypsum

and salt precip itated in a partly inclosed arm of the se a during the

deposition of the Macerady formation, these minerals having been con

centrated in the same formation by ground waters which circulated along

the fault contact between the Carboniferous and Cambrian rocks, dissolved

the calcium carbonate from the earthy l imestones, and segregated the

gypsum and salt in the gyps iferous and saline beds by chemical selection .

INDE$

Ab rasive mat erial s,3 1 .

Li st of p roduce rs , 3 1 :Mi l l ston es ( buhr ston es ) , 3 1 .

P roduction of,3 1 .

A r sen ic,37 .

Asbestos , 32 — 33 .

A ssociat ed m i n e ra l s , 4 5 .

Baddel ey i t e, composition and p rices of , 49Ba ryte s , 34 .

List of p roduce r s,34 .

Cement,20— 2 1 .

Li st of p roduce r s , 2 1 .

Mic roscopica l p et rography ,4 7 .

Chara ct er of coal used in the manu fac

tu re of coke i n V i rgin ia , 1 4 .

Cha ract er of sepa rated zi rcon cry st a l s , 4 5 .

C l ay s and c lay p roduct s , 1 4 — 1 8 .

Li st of p roduce rs , 1 7— 1 8 .

Stat i stics of p roduction , 1 5 .

Coal , 8— 1 3 .

Li st of p roduc e r s , 1 2 — 1 3 .

Sta t i stic s of p roduct ion . 1 1 — 1 2 .

Coke , 1 3— 1 4 .

Cha ract e r of coal u sed in th e manufa ctur e of cok e i n V i rgin i a , 1 4 .

List of p roduce rs , 1 4 .

Sta ti st ics of manufa ctu re , 1 3 .

Compos i tion and p r i ce s of baddeleyi te, 4 9 .

Conc lus i on s salt and gy p sum deposi ts of

southwest ern V i rginia , 70— 73 .

Coppe r , 7— 8 .

P roduct ion of 7— 8 .

C rushed ston e 30.

Va lue of p rodu ction , 30.

D i st ribution and occur rence of Zi rcon i f

erou s s andstone n ea r Ash land 4 2

4 3 .

Econom ic a sp ect s zi rcon ,4 9 .

Composition and p r i ces of badd eley i t e .4 9 .

Feld spa r, 32 .

F lux,furna ce 30— 3 1 .

P roduction of,3 1 .

Forme r views , or ig i n of sa lt and gyp sumdeposit s of southwest e rn V i rgin ia ,6 4 — 6 6 .

Furna ce flux,30— 3 1

P roduct ion of , 3 1 .

Gen e r alized sect i on of a wel l a t Sa ltvil l e

,

6 9 .

Ca rbon iferousSal tvi l l e , 52 .

Gen era l geology of Zi rcon ife rous sandston e a r ea. n ea r A sh land

,40—4 2 .

rock s i n v i c in i ty of

Gen e sis , 4 7— 4 9 .

Geology of the sal t and gyp sum deposit sof south west e rn V i rginia , 5 1 — 73 .

Geology , 52 — 60.

St ratigr aphy ,

St ructur e , 55— 60.

Locat ion , 5 1— 52 .

O rigin of the depos i t s, 6 4 - 73 .

Conc lusion s , 70— 73 .

Former view s,6 4— 6 6 .

Ob served rela t ion s ,Gen e r a lized section of

Sa l tvi l l e , 69 .

Pa rt ial section of M acerady for

mation ea st of B road Ford , 6 8 .

Pa rt ial s ect ion of M acerady for

mat i on ea st of W a tson Gap ,6 8 .

Pa rtia l sect ion of Macerady for

mat ion west of M acerady , 6 7 .

Section of wel l a t P l a ste rco, 6 9 .

Sa lt and gyp sum indust ries , 6 1 — 6 4 .

Gy p sum , 6 2— 6 4 .

Sa l t . 6 1 — 6 2 .

Summary , 73 .

Topogr aphy , 5 2 .

Geology ,salt and gyp sum deposit s of

southwest ern Vi rgin ia 52 — 6 0.

St rat igraphy ,52 — 54 .

St ructure , 5 5— 60.

Gold and s i lve r , 6 — 7 .

Tonnage of ore t r ea ted and min e product ion of metal s i n Vi rg i n ia , 7 .

Gran i te , 2 4 — 2 5 .

L i st of p roduce r s , 2 5 .

Numbe r and va lu e of gran it e pavingblock s p roduced , 2 5 .

V alue of p roduct ion , by uses , 2 4 .

Gravel , sand and , 2 1 — 2 3 .

Lis t of p roduce rs . 23 .

P roduction of , 2 2 .

Gyp sum ,34 — 35 6 2 — 64 .

Deposit s not at p r esen t util ized . 63— 64 .

L i st of p roduce rs , 35 .

P re sen t developmen t . 6 2— 6 3 .

Gy p sum,sa l t and , i ndust rie s , 6 1 — 6 4 .

Gy p sum ,6 2 — 6 4 .

Sa l t 6 1 — 6 2 .

I lmen ite , microscop i cal p et rography of , 4 7 .

In t rodu ction . bienn ial r eport on th e m i ne ra l p roduction of Vi rgin ia , 1 — 2 .

Tab les . min era l p roduct i on of Vi r

gin ia , 2 .

Zi rcon iferous sand ston e n ea r A sh land ,V i rgi n ia . 40.

a wel l at

INDE$ .

I ron ores and p ig i ron , 3— 5 .

List of i ron ore p roduce r s 4 — 5 .

P roduction of i ron ore,3 .

P roduction of p i g i ron , 4 .

Lead and zinc,8 .

Lime,1 8— 20.

L i st of p roduce r s , 20.

P roduction of , 1 9 .

Limeston e , 2 5— 2 7 .

Li st of produce r s , 2 6— 2 7 .

P roduct i on of , 2 6 .

L i st of m in e ra l wa te r sp rings , 38— 40.

Location,s a lt and gyp sum deposi t s of

southwest e rn V irg in ia , 5 1— 52 .

M acerady format ion ea st '

of B road Ford , 68 .

Macerady formation ea st of W at son Gap ,

6 8 .

Macerady formation west of M acerady , 67 .

Manga n ese or es , 5— 6 .

Li st of p roduce r s , 5 — 6 .

P roduct ion and value of,5 .

Manu fa ctur e of coke , sta t ist ics of , 1 3 .

Marl, 35

— 36 .

Mica, 32 .

Li s t of op e r ator s , 32 .

M i l l ston es ( buh rston e s ) 3 1 .

Li s t of p roduce r s , 3 1 .

V a lue of p roduct i on of , 3 1 .

Min e ra l pa i n t s,35 .

List of p roduce r s , 35 .

M i n e ra l p roduct ion , tabl e s of , 2 .

Mine ra l wate rs,37 — 39 .

L i st of sp rings, 38— 39 .

P roduction and valu e of,38 .

Numbe r and va lue of gran it e pav i ngblock s p roduced i n V i rgin ia , 2 5 .

Obse rved re lation s , sa l t and gyp sum d eposit s of southwest V i rgin i a ,

6 6 — 70.

Gen e ra l ized section of a wel l at Sal tvil l e . 6 9 .

Pa rt i a l section of Maccradv formationeast of B road Ford ,

6 8 .

Part i a l sect i on of M acerady formationeast of W at son Gap ,

6 8 .

Pa rtia l sect ion of M acerady format ion'

west of M acerady , 6 7 .

Sec tion of wel l a t Pl a st e rco, 6 9 .

O re s , i ron , 3— 5 .

L i st of p roduce r s,4 — 5 .

P roduct ion of , 3 .

O rigin of sa l t and gyp sum deposit s of

southwest e rn Vi rgin i a , 6 4 — 73 .

Con c lu sion s . 70- 73 .

Former Views,6 4 - 6 6 .

Obse rved relat i on s ,P ig i ron , p roduc t ion of

,4 .

P roduce r s,bary t es , 34 .

c ement,2 1 .

m

c lay s and c l ay p roduct s , 1 7— 1 8 .

coaL 1 2 — 1 3 .

coke, 1 4 .

gran ite , 2 5 .

gyp sum , 35 .

i ron or es,4 — 5 .

l ime, 20.

limeston e , 2 6— 2 7 .

mangan es e ores,6 .

m ica, 32 .

m i l l ston es , 3 1 .

min e ra l pain t s, 35 .

m in e r a l wate rs,38— 39 .

py rit e and py r rhotit e , 37 .

s and and gravel , 2 3 .

sand ston e,2 7 .

s lat e , 30.

t al c and soap ston e, 34 .

P roduction,baryt es , 34 .

c l ay s and cl ay p roduct s , 1 5 .

coa l , 1 1 — 1 2 .

coke,1 3 .

coppe r , 7 .

furnace flux, 3 1 .

g ran ite , 2 4 .

i ron ore s , 3 .

l ea d and zinc,8 .

lime, 1 9 .

limes tone,2 6 .

mangan e se or es , 5 .

meta l , 7 .

m il l ston es . 3 1 .

min e ra l, of Vi rgin i a , 2 .

m in e ral wate rs, 38 .

pig i ron , 4 .

py r i t e and py r rhot it e , 37 .

sand an d gr avel , 2 2 .

sand ston e , 2 7 .

sl a te,2 8 .

ston e , 2 3 .

ston e,c rush ed , 30.

ta lc and soap ston e, 33

— 34 .

Py r i t e and py rrhot i t e , 37 .

L i st of p roducer s , 37 .

P roduction of , 37 .

Py r rh ot i te , pyrit e and , 37 .

Qua rtz , m ic roscop ica l p et rography ,4 7 .

Rut i l e ( t i tan ium ) , 37 .

Sa lt 35,6 1 — 6 2 .

P resen t d evelopmen t , 6 1 — 6 2 .

Sal t and gyp sum deposit s of southweste rn Vi rgin ia , geology of , 5 1

— 73 .

Sa l t and gyp sum indust r i es , 6 1 — 6 4 .

Gyp sum , 6 2— 63 .

Sal t , 6 1 — 6 2 .

Sand and gravel , 2 1 — 2 3 .

L i st of p roducer s , 2 3 .

P roduction of,22 .

7 6 INDE$ .

Sand ston e , 2 7 .

List of p roduce r s, 2 7 .

P roduct i on of , 2 7 .

Sand ston e Zircon iferous , n ea r A shlandVi rgin ia , 40

Se ction of well a t Pl a st erco 6 9 .

Sect i on s , pa rt ial , 6 7— 6 8 .

Macerady format ionFord , 6 8 .

M acerady format i on ea st of W a t sonGap , 6 8 .

Maccrady format ion w est of M acerady,

east of B road

Si l i ca , 32 .

Si lve r , gold and ,6 — 7 .

Tonnage of ore t r ea ted and min e product i on of meta ls . 7 .

Soap ston e,ta lc and

,33— 34 .

List of p roduce rs , 34 .

P roduction of,33— 34 .

Sp rings , m in era l wat e rs , list of,38 — 39 .

Stat i st ic s of manu factu re of coke . 1 3 .

Ston e 2 3— 3 1 .

C rushed ston e,30.

V a lue of annua l p roduction of,30.

Fu rnac e flux , 30— 3 1 .

P roduction of, 3 1 .

Gran i t e,24 — 2 5 .

List of p roduce r s,2 5 .

Number and va lue of paving block s , 2 5 .

Value of p roduction, 2 4 .

Limeston e, 2 5

— 2 7 .

Li st of p roduce rs,2 6 — 2 7

Product i on of,2 6 .

Lis t of p roduce r s,2 5

,2 6 2 1 30.

Sandston e , 2 7 .

L i st of p roduce rs,2 7 .

V alue of p roduct ion,2 7 .

Slat e,2 8— 30.

L i st of p rodu ce r s 30.

P roduc t ion of 2 8 .

V a lue of p roduction of,2 3 .

St ra tigraphy , sa lt and gyp sum deposit sof southwest e rn Vi rgi n ia 52 — 54 .

Gen e ra l i zed sec tion of carbon ife rousrock s in th e vicin ity of Sa ltv i l l e

, 5 2 .

St ru ctu re . sa lt and gy p sum deposit s ofsouthwest e rn Vi rgi n ia ,

Summary , geology of sa l t and gyp sumdeposit s of southwest e rn V i rginia ,

Table s min e ral p roduct i on of Vi rgi n ia , 2 .

Ta lc and soap ston e , 33— 34 .

L ist of p roducer s , 34 .

P roduct ion of , 33— 34 .

Test s , 4 3—45 .

Zircon obtain ed f rom sandston e nea rAshland

,Vi rgin ia , 4 4 .

Tin, 8 .

Titan ium ( rut i l e ) , 37 .

Tonn age of ore t reat ed and min e pro

duct ion i n V i rgin ia , 7 .

Uses Zi rcon ife rous sandston e,50.

Zinc,l ea d and

,8 .

Zi rcon i fe rous sand ston e n ea r A sh land .

Vi rginia , 40— 50.

A s sociated min e ra l s , 4 5 .

Cha ract e r of sepa rat ed zi rcon c ry st a l s ,4 5 .

Dist ribut ion and occu r rence of th esandston e 4 2— 4 3 .

Econom ic a spect s , 4 9 .

Composit ion and p r i ces of badd eleyi te

,4 9 .

Gen e ra l geology of the a rea ,40— 4 2

Gen esi s , 4 7— 4 9 .

Int roduct ion,40.

Mic roscopica l pe t rog raph y . 4 5— 4 7 .

Cemen t,4 7 .

I lmen it e , 4 7 .

Qua rtz , 4 7Zi rcon

,4 6 .

Test s,4 3— 4 5 .

Zi rcon obtain ed f rom sandston e n e a rA shland 4 4 .

Uses,50.

Zi rcon . mic roscopical p et rography of ,4 5— 4 7 .

Cemen t,4 7 .

I lmen ite 4 7 .

Qua rtz , 4 7Z i rcon 4 6 .

Zi rcon obta in ed from sandstone n ea rA shland , V i rgin ia , t est s , 4 4 .