TNDEX TO VOLUME 23

Leading articles are in bold face type; notes, abstracts and reviewsare in ordinary type. only minerals for which definite data are given areindexed.

Acmite occurrence in riebeckite-mic rogran i te . (Nocko ld ) . . . . . l2 l

Actinolite. 371Actinolitic amphibole from New

Zea land. (Hut ton) . . . . . . 539Adelie Land rocks. (Stewart). . . . . 464Afirondack garnet deposits, gene-

s i s o f . ( M i l l e r ) . . . . . . . . . . . 1 7 4 , 3 9 9Ahlfeld, F. and Reyes, J. M.

Mineralogie von Bolivien.[Book review] . 538

A l m a n d i t e . . . 3 5 1 . 8 1 6Aluminum and silicosis. @mmons,

Fries). . 654Alunite. jS4Amalgams, natural. @ennan, Har-

court). . 761Amarantite. 747Aminoffite. (Hurlbut) 293Amphibolization of sills and dikes

in Libby quadrangle, Mon-tana. (G ibson, Jenks) . . . . . . 3Oz

Anauxites and kaolinites, struc-tural relationships of .(Machat-schki). . tl7

Andalusite in pegrnatite fromFresno, Co., Calif. (Macdon-ald, Merriam) 58S

Anderson, B. W... Zg3Anderson, C. A. Volcanoes of

Medicine Lake Highland,Calif.. . 166

Andradite. 432A n h y d r i t e . . . . . . . 8 9 8Anthophyllite and curnmingtonite-

grunerite series. (Winchell). . 329Ant ipov-Kara ta jev , I . N . . . . . . . . Zg4Anterlite. 7l3Antofagastite and bandylite, new

copper minerals from Chile.(Palache, I'oshag). 85

Antofagastite. 705Apatite group, structural investi-

gation of the isomorphisn of.(McConne l l ) . . . .1 ,173,606

Apatite-phlogopite deposits ofQuebec. (Landes). 359

Arshinov, V. V. Pocket mineralogi-cal or polarizing magnifier.. . 287

Artz,L. C. Occurrence of wavellite,G i l e s C o . , V a . . . . . 6 6 4

Aschar i te (F) . (God levsky) . . . . . . . 294Asovskite. (Efremov). 667A s p l a n d , V . t . . . . . . . . . . . . 4 1 5A t a c a m i t e . . . . . . . . . 7 0 6Atomic packing models of some

common sillicate structures,@orris, tr'rondel, Gtissow,Lopez, Lotd, Parrish, Shimer)

. . . . . . 6 5 , 1 8 2Austinite and brickerite, identity

of. (Brendler) 347Australites, a unique shower of

glass meteorites. (Fenner).. . . 4LsAutunite. 27 5Axinite, notes on. (Peacock).. . . . SZ2Azurite. 7lO

Bandy, M. C. Mineralogy of tlreesulphate deposits of NorthernChile.. . 669

with Peacock, M. A. Un-gemachite and clino-unge-nachite, new minerals fromChi le . . . 314

Bandylite. 704Bandylite and a:rtofagastite, new

copper minerals from Chile.(Palache, Foshag). 85

Bannerman, H. M. and Stoiber,R. E. Fluorite deposits inWestmoreland, New Hamp... 166

Bannister, F. A... .721,356,539Barnes,'W. E. and'Wendling, A. V.

Nature of twinning in K andRb dithionates. . . . . . 397

Bauer, L. H. and Bermaa, H. withPalache, C. Yeatmanite andsarkinite from Franklin, NewJersey . . . . .176 ,527

907

908

Baumhauerite, crystallography of .(Palache). 82I

Bedenite. (Efremov) 470Beljankin, D. S. and Petrov, V. P.

Occurrence of cristobalite in as e d i m e n t a r y r o c k . . . . . . . . . ' . 1 5 3

Berek, M. Optical methods ofmeasuring in reflected polar-ized light 181

Berg, E. L. Notes on catlinite andthe Sioux qltattzite 258

B e r g g r e n , T , . . . . . 5 4 2Berman, H. and Harcourt, G. A.

Natural amalganrs. 761with Palache, C. and Bauer'

L. If. Yeatmanite and sar-kinite from Franklin, New

J e r s e y . . . . 1 7 6 , 5 2 7Bismuthinite ard cannizzarile

from Vulcano. (Wolfe).. .. . . . 790

Bixbyite otr topaz, orientation of.(Pabst). 342

B j l r l y k k e , H . . . . . 2 9 3B l o e d i t e . . . . . . . . . 7 1 9B o r a c i t e . . . . . . . . . 8 9 9Bornite. 702Botryogen. 749Bowen, N. L. Mente et malleo

a t q u e c a t i n o . . . . . . . 1 2 3 , 1 6 6B r a m m a l l , A . . . . . . . . . 3 5 6 ' 4 1 5Braunite from Nagpur, India, crys-

tal lography of.(Switzer). . . . . 649Brauns, Reinhard, memorial of.

(Kraus) 131Brendler, W. Identity of austinite

and brickerite 347Brickerite, identity with austinite.

(Brendler) 347Brochantite 713Bromyrite from Tombstone, Ariz.

(Rasor). I57Buerger, M. J. Surface reflection

areas in Weissenberg photo-graphs. 166

and Butler, R. D. Data formodels illustrating Eurange-ment and packitrg of atoms incrystals. (A, AB, ard AB2types).. 47L

- and Parrish, w. unit celland space grouP of tourmaline 182

Buie, B. F. with Larsen, E. S. Pot-ash analcime and Pseudoleu-cite from Highwood Mts. ofMontana 837

Butler, R. D. Silicification tYPesalong hanging wall of theLondon fault, MosquitoRange, Colo.. 167

with Buerger, M. J. Datafor models illustrating ar-rangement and Packing ofatoms in crYstals. (A, AB andABe types). 47t

with Fraser, D. M. Preh-nite from CooPersburg, Penna. 583

Cadmium in smithsonite from NewMexico. (Schaller, Fairchild). 894

Cahn, L. with Rogers, A. F.

Quartz with pinakoid facesfrom Nathrop, Chaffee Co.,Colorado 178

Calumet stock, Colorado, structureof. (Howland) 172

Cameron, E. N. Mineral depositsof northeastern Part of Hum-boldt Range, Nevada. 167

C artizzaite a-nd bismuthinite f romVulcano. (Wolfe). 790

Catlinite and the Sioux quartzitetnotes on. (Berg). 258

Cayeuxite. (Sujkowski) 542Center Strafford, New lfamPshiret

pegmatite, paragenesis of.(Switzer) . 811

Chacaltaite. (Kaloczkowska). . . . . 666chalcanthite. 718chalcocite.. 7olChalcopyrite. 7O2Chamosite and daphnite. (Halli-

mond). 539chenevixite. 7 rl

C h i r v i n s k y , P . . . . . . . 6 6 7

Chrysocolla . 7l0Clay minerals: dickite, halloYsite

and hydrated halloYsite' crys-

:l :i*:*:: :i 1l::i':::i"o,,nu

INDEX

INDEX 909

Cleavage-lumidescence in mica.(Meen) . 174

Cliftonite, re-examination of. (Hey) l2lClino-ungemachite. (peacock,

Bandy). 3I+Clino-ungemachite.. 258Columbite . . 276Cop iap i te . . . 737Copper. 699Copper pitch. . Z0gCoquimbite 729Covell i te. 7OICristobalite, occurrence in a sedi-

mentary rock- (Beljankin, Pet-r o v ) . . . . . 1 5 3

Crook, W. J. Method for photo-graphing petrographic thinsections at low magnifications. 114

Crystal habit, significance of.(Donnay). 168

Crystal models illustrating ar-rangement and packing ofatoms for types A, AB andABr. (Buerger, Butler). .. 47I

Cummingtonite-grunerite series,(V l inche l l ) . . . . 329

Cuprite. 707Cuprocopiapite. 732Currier, L. W. Regional granitiza-

tion and metamorphism inN e w E n g l a n d . . . . 1 6 8

Curvature in crystals of veinq u a r t z . ( D o l l a r ) . . . . . 3 5 6

Dahll i te.Dake, H. C., Fleener, F. L. and

Wilson, B. H. Quartz familyminerals. [Book reviewj.. . . .

Danburite.Daphnite. (Hallimond) .Davison, E. H.D e a n s , T . . . . . . .D e e r , W . A . . . . . .Deforrnation of single calcite crys-

tals underhigh confining pres-sures. (Griggs)

Dehrn i te . . .Delafossite, crystal structure and

density of. (Pabst).

Diadochite, a mineraloid from NewIdria mine, Calif. (Rogers) . . 178

Diaphorite, crystallography andx-ray data. (Palache, Win-chell). . 821

Diaspore clay cast of fossil wood ina Missouri diaspore pit. (Kel-ler)

Dickite, crystal structure of. (Hen-dricks) 170,295

Diopside, atomic packing modelof. (Parrish, Giissow) .70,182

D o l l a r , A . T . J . . . . . . 3 5 6D o l o m i t e . . . . 8 9 8Donnay, J. D. II. Set of grids for

determination of non-opaqueminerals 91

Significance ofcrystal habit 168Dorris, J. E. Atomic packing model

of ol ivine. .57.182Double diaphragm method, sen-

sit ivi ty of. (Saylor). . . . 779Dunicz, B. L.. . 542

Eakle, A. S. (Pabst, A.) MineralTables. [Book review.] 538

Edwards, A. B. Formation of id-d i n g s i t e . . . . 2 7 7

Efremov, N. E.. . 470,666,667Electrical counter to replace inte-

grating microscope stage.(Hurlbut). I72

Ellestadite. 73Emmons, R. C. and Fries, C. Alu-

minum and silicosis 654Enargite.. 703Eosphorite (optical data). . . 818Epsomite . 7l7Erwin, H. D. Some metamorphic

terminology ll9Etch figures, interpretation of.

(Wherry) 156

Fairchild, J. G. with Schaller,W. T. Cadmium in smithsonitef rom New Mex ico . . . . . 894

Fenner, C. 4I5Fermorite.. 10Ferrinatr i te . . 731

905900539538539121

28I I

910 INDEX

Fibroferrite 7+8 Garnets from vesicles in rhyoliteFisher, D. J. Stereoscopic crystal nearEly, Nev. (Pabst).. . ' . . 101

drawing. 169 Gedroitsite. (Antipov-Karatajev,U-stage axial angle appa- Sedleckij). 294

ratus. . . 169 Gianella, V. P. Vivianite fromFleener , F . L . and Wi lson , B . H. Ruth , Ca l i f . . . . . . . . . . 414

with Dake, H. C. Quartz Gibbsite. 352family minerals. fBook re- Gibson, R. and Jenks, W. F. Am-viewl . . 905 phibolization of sills and dikes

Fluorescence, mineral, sfudies in. in the Libby quadrangle'(Smith, Parsons). 513 Mont... 302

Fluorite deposits in Westmoreland, Glass, J. J. with Stoser G. 'W'

New Hamp. (Bannerman, Gaftet crystals in cavities inStoiber)

Fluorite of England and Wales, glomerate in York Co', Pa.. . . 430rare-earth content of. (Asp- Glauberite, twinning in' (Hawkins) l7Oland, Brammal l , Leech). . . . . 415 Godlevsky, M. N.

Foschallasite.(Chirvinsky) . . . . 667 Goldschmidtine,anewantimonideFoshag, W. tr'. Sodium bicarbonate of silver. (Peacock) ' .. . . . . . .. 176

from Searles Lake, Calif.. . . . 169 Gonyer, F. A. with Richrrond,with Palache, C. Antofa-

'W. E. Pollucite.. . . . . 783gastite and bandylite, new Gordon, S. G. Making structurecopper minerals from Chile. . . 85 models . 170

F r a n c o l i t e . . . . . . . . . . . . . . . . . . . 7 N e w m i n e r a l h a l l o f A c a d -Francoli te from sedimentary iron- emy of Natural Sciences, Phi l-

stones of the coal measures. adelphia l7O(Deans, Vincent) 539 Graftonite (optical data) ' . 815

Fraser, D. M,, Butler, R. D. and Graphic method of determiningHurlbut, C. S. Jr. Prehenite optic sign and true arial anglefrom Coopersburg, Penna.... 583 from refractive indices of bi-

Freieslebenite, crystallography and axial minerals. (Lane, Smith) 457r-ray study. @alache,

'Win- Grids for determination of non-

chell) . . 82I opaque minerals. @onnay). . ' 9IFries, C. with Emmons, R. C. Gnggs, D. Deforrnation of single

Aluminum and silicosis.. . . . 654 calcite crystals under highFrondel, C. Atomic packing model confining pressures. ' . .... ' 28

o f muscov i te . . . . . .73 ,182 Grossu la r i te . 351Oriented inclusions of Gtissow, W. C. with Parrishr W.

brookite, zircon and garnet in Atomic packitrg model of diop-m u s c o v i t e . 1 7 0 s i d e . . . . . . . . 7 0 ' 1 8 2

G y p s u m ' . . . . . . . 7 1 7

Gahno-spinel. (Anderson, Payne). 293 Gypsum veins, fibrous, in LykinsGarnet crystals in cavities in meta- and Morrison formations of

morphosed Triassic conglom- Colorado.(Thiesmeyer).. . ' . . 179erate in York Co., Pa. (Stose,Glass) . 43o Haff, J. C. Preparation of petro-

Garnet deposits, Adirondack, gene- fabric diagrarns. . . ' . . 543sis of. (Mil ler). . . . . . . . . . .174,399 Hali te crystals, large, occurrence

Garaets, composition and occur- of. (Slawson). 179

rence of. (ltrrigho. 436 Hallimond, A. F.. ' 539

INDEX 9ll

Ifalloysite, crystal structure of.(I lendricks).. . . . 170,295

Halotrichite. 725Hdmos, L.v. X-ray image method

o f c h e m i c a l a n a l y s i s . . . . . . . . . 2 1 5Hanksite, symmetry, unit cell and

composition of. (Ramsdell) 177Ilarcourt, G. A. with Berrnan, If.

Natural amalgams. .. 761Harmotone of hydrothermal origin

from Delaware Co., Penna.(Meier, Tomlinson) 174

Hawkins, A. C. Twinning in glau-berite. . I7O

Heavy rninerals in granitic rocksof Yosemite region. (Pabst).46,17 6

Heaqz mineral methods applied topre-Cambrian rocks of thesouth shore of Lake Superior.( T y l e r , M a r s d e n ) . . . 1 8 0

Hematite. 708Ilendricks, S. B. Crystal structure

"of clay minerals: dickite, hal-loysite and hydrated halloysite

. . 1 7 0 , 2 9 5and Jefferson, M. E. Crys=

tal structure of vermiculitesatrd mixed vermiculite-chlo-r i tes. . 851

Structures of kaolin a:rdtalc-pyrophyllite hydrates andtleir bearing on the watersorption of clays. 863

I{ess, H. H. and Phillips, A. H.Orthopyroxenes of the Bush-ve ld type . .17 1 ,450

H e t e r o s i t e . . . . g 1 gHeulandite. 351Hewett, D. F. with Miser, H. D.

Unweathered manganese de-posits of Batesville, Arkansas. 175

Hewitt, R. L. and Schwartz, G. M.Relation of pyrrhotite to othersulfides. l7l

Hexagonal system, geometrical re-lations in. (Peacock, Bandy). . 315

H e y , M . H . . . . . . . . . . . . . l 2 lHilgardite, minerals associated

wi th . (Hur lbu t , Tay lo r ) . . . . . . 898Hohmannite. 746

Hornblendes of Glen Tilt complex,Perthshire, composition andparagenesis of. (Deer) l2l

Howland, A. L. Structure of theCalumet Stock, Colorado... . 172

Humboldt Range, Nevada, mineraldeposits of the northeast partof. (Cameron) 167

Hunt, W. F. Book reviews. . . .538,905Hurlbut, C. S. Jr. Electrical

counter to replace integratingm i c r o s c o p e s t a g e . . . . . . . . . . . 1 7 2

Mineralogical observafi onson the northern excursion ofthe XVII International Geo-l o g i c a l C o n g r e s s . . . . . . . . . 1 3 4 , 1 7 2

Morphologic description ofprehnite from Coopersburg,Penna.. 586

Parahilgardite, a new tri-clinic-pedial mineral . 765

293and Tavlor. R. E. Notes on

minerals associated with hil-gardite. 898

H u t t o n , C , O . . . . . . . . . . 4 1 5 , 5 3 9Hydrobiotite. (Brammall, Bannis-

ter, Leech). 356Hydromica. 376

Iddingsite, formatiotr of. @dwards) 277Inderite. (Godlevsky) 294Ingerson, E. Uraninite and asso-

ciated minerals from HaddamN e c k , C o n n . . . . . . . . . 2 6 9

Intrusion and foliation, relation of,in granitic intrusive near Han-over, New Hamp. (Kaiser). . 172

Irving, J. with Larsen, E. S. Pet-rologic study of Tertiaryvolcanic rocks of San Juanregion, Colo. Plagioclasefeldspars. 227

J a r o s i t e . . . . . . . . . 7 5 4Jefierson, M. E. with llendricks,

S. B. Crystal structure of ver-miculites and mixetl vermic-ulite-chlorites 851

9t2 INDEX

structures of kaolin andtalc-pyrophyllite hydrates andtheir bearing on water sorptionofclays 863

Jenks, W. F. with Gibson, R. Am-phibolization of sills and dikesin Libby quadrangle, Mont.. 302

Johannsenite, a new manganesepyroxene. (Schaller). 575

Johnston, W. D., Jr., with Milton,C. Sulphate minerals of theComstock lode. Nevada. . . . . 175

Jordanite, crystallography andr-ray study. (Palache, Rich-mond). 821

Kaalijiirv meteorite from Estoniancraters. (Spencer). 356

Kaiser, E. P. Relation betweenperiod of intrusion and pro-duction of foliation in graniticintrusive near Hanover, NewHamp. . . 172

Kalinite. 721Kaloczkowska, M. 666Kaolin and talc-pyrophyllite hy-

drates, structure of, and theirbearing on water sorption ofclays. (Hendricks, Jefferson). 863

Kaolinites and anauxites, struc-tural relationshipsof . (Machat-s c h k i ) . . . . . . l I 7

Karachaite. (Efremov). . 666Keeleyite, identity with zinckenite.

(Vaux, Bannister) .. 539Keilhauite, a guide mineral to the

Sterling granite gneiss ofRhode Is land. (Young) . . . . . . 149

Keller, W. D. Diaspore clay cast offossil wood

Kent, L. E..from Missouri.

K r o e h n k i t e . . . . 7 3 O

LaForge, L. Crystallography oftsumebite. 77 2

Lanarkite, crystallography of.(Richmond, Wolfe).. . . . . 799

Landes, K. K. Origin of Quebecphlogopite-apatite deposits... 359

Lane, J. II., Jr. and Smith, H. T. U.Graphic method of determin-ing optic sign and true axialangle from refractive indices. 457

Lapis lazuli from San BernardinoCo., Cali f . CRogers) . . . . l l l

Lapparentite 74OLarsen, E. S. and Buie, B. F. Pot-

ash analcime and pseudoleu-cite from Highwood Mts. ofMontana. 837

and Irving J. Petrologicsfudy of Tertiary volcanicrocks of Sa:r JuaII region,Colo. Plagioclase feldspars. . . 227

and Larsen, E. S., Jr. Pet-rologic sfudy of San Juan re-gion, Colo, Orthoclase andminor accessor ies . . . . .4 l7 ,425

Leaching of granite and otherr o c k s . ( D a v i s o n ) . . . . . 5 3 8

Leech, J . G. C. . .356,415Leightonite, a new sulphate of

copper from Chile. (Palache) 34Leightonite, relation to polyhalite.

(Pracock). 38Le igh ton i te . . . 719Lepidolites, new analyses of, and

their interpretation. (Stevens) 607Lewistonite. llL i m o n i t e . . . . 7 o 9Lindgrenite. . . 758Loellingite (analysis and crystal-

lographic data) . . . 816Logez, Y. M. with Lord' C. S'

Atomic packing model of sana-d i n e . . . . . . . 7 6 , 1 8 2

Lord, C. S. with Lopez, V. M.Atomic packing model of sara-t l i n e . . . . . . 7 6 , 1 8 2

Lundyite. (Dollar) . . 356

461415

Kerr, P. F. Tungsten mineraliza-tion at Oreana. Nevada. 773

Kratochirlite. (Rost). . 667Kraus, E, H. Memorial of Rein-

hard Brauns. 131Notable centennial in

American mineralogy .. . 145Presentation of first Roeb-

ling medal to Charles Palache. 54

INDEX 913

Macdonald, G. A, and Merriam, R. Metahohmannite. 748Andalusite in pegmatite from Metamorphicterminology. (Erwin) ll9Fresno, Co,, Cali f . . . . 588 Meta-sideronatr i te.. . 733

Machatschki, F. Structural reia- Meta-voltine 735tionships of kaolinites and Meteorite, Maria Elena. (Meen). . 661anauxites... . . 1I7 Meteorite, Osseo, Canada. (Mar-

Magallanite. (Fester, Cruellas, Gar- ble) . . . 17 3, 282gatagli). 293 Meteorites from western Australia,

Magnesite. . . . 898 new and little known. (Simp-Malach i te . . . . 7O9 son) . . 538Mangan-apatite. . . 10, 815 Meyerhofferite, crystallography of.Manganese deposits, unweathered, (Palache).. ... 644

Batesville district, Arkansas. Micropycnometer, new, for deter-(Miser, Hewett). . l7s mining densities of heavy sol-

Marble, J. P. Osseo, Canada, ids. (W'inchell). 805meteorite. -. ...173,292 Miller, W. J. Genesis of certain

Maria Elena meteorite. (Meen) 661 Adirondack garnet deposits.174, 399Mariposite. 353 Milton, C. and Johnston, W, D. Jr.Marsden, R. W. with Tyler, S. A. Sulphate minerals of the Com-

Heaqz mineral methods ap- stock Lode, Nevada. . . . 175plied to pre-Cambrian rocks of Mineral Hall of Philadelphia Acad-south shore of Lake Superior. 180 emy of Natural Sciences.

Marsh, G. E. Measurement of thin (Gordon). . 170section components with pla- Mineralogical observations on thenimeter... 412 northern excursion of the

McConnell, D. Structural investi- XVII International Geologica^gation of the isomorphism of Congress. (Hurlbut). .. . . .134,172tlre apatite group . I, L73,606 Mineralogical Society of America-

Medicine Lake, Highland, Calif., List of correspondents, fellows,volcanosof. (Anderson). 166 members and subscribers. . . . 186

Meen, V. B. Cleavage-lumines- List of former officers and annualcence in mica. . 174 meeting places 185

- Maria Elena meteorite. . . 661 List of officers and fellows electedMeier, A. E. and Tomlinson. W. H. in 1938 160

Harmotone of hydrothermal Nominations of officers for 1939 606origin from Delaware Co., Proceedings of 18th Annualp e n n a . . . . . 1 7 4 M e e t i n g . . . 1 5 9

Melanterite. 717 Mineralogical Society of GreatMendozite. . . 722 Britainandlreland. 121,356,415,538Meneghinite, crystallography and Mineralogical Society of Southern

x-ray study. (Palache, Rich- California ..... 665mond). 821 Mineralogie von Bolivien. (Ahlfeld,

Mente et malleo atque catino. Reyes) [Book review]. . . . . 538(Bowen). . .123, L66 Minerals of California. (Pabst)

Merosymmetry vs. merohedrism. [Book review] . - . . 538(Rogers). ... 178 Minerals of southern California,

Merrianr, R. with Macdonald, notes on. (Murdoch, Webb). .. 349G. A. Andalusite in pegmatite Mineral Tables. (Eakle-Pabst)from Fresno Co., Calif.. . . 588 [Book review] 538

Merrillite. 11 Mirabilite. 714

914 INDEX

Miser, f[. D. and Hewett, D. F. Notable centen:rial in AmericanUnweathered manganese de- mineralogy.(Kraus).. . . . . ' . . 145posits of Batesville district,A r k . . . . t 7 5 O k e n i t e . . . . . . . . . 3 5 0

and Stevens, R. E. Taeni- Olivine, atomic packing model of.olite from Magnet Cove, Ark. . 104 (Dorris). . .67,182

Mississippi minerals survey. . . . . . 903 Optical methods of measuring in re-Models to aid in visualization of flected polarized light. (Berek,

optical properties of crystals. Zetler). 181(Smith). 179,629 Optic fgures, direct projection of.

Molybdenite. 700 (Quirke) . .177,595Montmorillonite group, atomic ar- Oriented inclusions of brookite,

rangement and variability in. zircon and garnet in musco-(Nagelschmidt) 539 vite. (Frondel) 170

Mordenite (ptilolite), r-ray exami- Orthoclase from Tertiary volcanicsnation of. (Waymouth, Thorn- of San Juan, Colo. region.ley, Taylor) 540 (Larsen, Larsen). 417

Moschellandsbergite. . 762 Orthopyrorenes of the BushveldMountain, E. D.. . 415 type. (Hess, Phillips). . . . . .171,450Mulholland, M. M. Zoning as cx- Osseo, Canada, meteorite. (Mar-

planation of optical anomalies ble). . . . . . .173,282of plagioclase from Vermont. 534

Murdoch, J. and Webb, R. W. Pabst, A. Crystal structure andNotes on some minerals from densityof delafossite.. . . . . ' . . 775southernCalifornia. .. 349 Garnets frorn vesicles in

Muscovite, atomic packing model rhyolite near Ely, Nevada . . . 101of. (F'rondel). . . . . .73,182 Ileavy minerals in graaitic

rocks of Yosemite region. . . .46, 176Nagelschmidt, G.. . . . . 539 Minerals of California.Natrochalcite. 731 [Book review] 538Natrojarosite. 755 Mineral Tables. (Eakle)Needham, C. E. Zeolites in New [Book review] 538

Mexico. 285 Orientation of bixbyite onNewark Mineralogical Society.. . . 122 topaz.. 342New mineral names (abstracts). . . Palache, C. Crystallographic sfud-

.. . . . .64,293,470,541,666 ies of sulfosalts: baumlauer-New minerals (original descrip- ite, meneghinite, jorda-nitet

t ions) . . . . . .34 ,85 , d iaphor i te , f re ies leben i te . . . . . 821. . . .314,4O9,527,575,733,742,765 Crys ta l lography o f meyer -

New York Mineralogical Club hofferite. 644. . . . .62 ,211,212,290,356,416,468 Le igh ton i te , a t rew copper

Nicke lconten to f anAlaskant roc- su lphate f romChi le . . . . . . . . . 34tolite. (Reed) . .: . . . . 177 Bauer, L. H. and Berman,

Nickel from meteorites, loss H. Yeatmanite, a new min-through weathering. {Ninin- eralrandsarkinitefromtr'rank-ger). . . . 536 l in' N. J. . .176,527

Niggliite. (Scholtz). 64 and Foshag, W. F. Anto-Nininger, H. H. Loss of nickel from fagastite and bandyliter new

meteorites through weathering 536 copper mirerals from Chile. . . 85N o c k o l d , S . R . . . . . . . . . . . 1 2 1 P a r a b u t l e r i t e . 7 4 2

INDEX 915

Paracoqu imbi te . . . . . 729Parahilgardite, a rew triclinic-

pedialmineral. Qlurlbut). . . . 765Parkerite. (Scholtz) 64Parrish, TI. with Buerger, M. J.

Unit cell and space group oftourmaline... 182

and Giissow, W. C. Atomicpacking model of diopside. . .7O,lgz

Parsons, A. L. Wave surfaces andindicatrices. 176

Palsons, W. H. with Smith,E. S. C. Mineral fluorescence. 513

P a y n e , C . J . . . . . . 2 9 3Peacock, M. A. Goldschmidtine, a

new antimonide of silver.. . . . 176Relation of leightonite to

polyhalite. 38Supplementary notes on

axinite . 522and Bandy, M. C. Unge-

machite a:rd clino-ungemach-ite, new mins14l5 from Chile

3t4Petrofabric diagrams, preparation

o f . ( H a f f ) . . . . . . . . . 5 4 3Petrologic study of Tertiary vol-

canic rocks of San Juan re-gion, Colo. (Larsen, Irving,Gonyerrlarsen). . . . . . . . . .22j,417

Petrov, V. P. with Beljankin, D. SOccurrence of cristobalite in as e d i m e n t a r y r o c k . . . . . . . . . . . 1 5 3

Philadelphia Mineralogical So-ciety.63, 291,357,540, 541, 905, 906

Phillips, A. I{. with Hess, H. H.Orthopyroxenes of the Bush-veld type. .171,450

Phlogopite-apatite deposits ofQuebec, origin of. (Landes).. 359

Photographing thin sections at lowmagnif icat ions. (Crook).. . . . . l l4

Photography, natural color, appli-cationsinrnineralogy.(Shaub) 20

Pickeringite. 724Picroamosite. (Serduienko). . . . . . 666Picromerite. 7I9Pisanite . 7 LgPlagioclase feldspars of the Ter-

tiary volcanic rocks of the San

Jua:r region, Colo. (Larsen,Irving). 227

Plainfield Mineralogical Society . . 541Planimeter measurement of com-

ponents of thin sections.(Marsh) 412

Pocket mineralogical or polarizingmagnifier. (Arshinov). 287

Pollucite. (Richmond, Gonyer). . . 783Polyhalite, relation to leightonite.

( P e a c o c k ) . . . . . . . . . 3 8Polylithionite, formula.Potarite.Potash analcime and pseudoleucite

from Elighwood Mts. of Mon-tana. (Larsen, Buie) .

Potassium arrd rubiditrm dithio-Dates, twinning in. @arnes,'Ssndling).

Prehnite from Coopersburg, Penna,(Fraser, Butler, Hurlbut)... . .

Pseudoleucite and potash aaalcimefrom Ilighwood Mts. of Mon-tana. (Larsen, Buie). .

Pyrite .Pyrophyllite depirsit in south-

eastern Newfoundland. (Vhay)Pyroxene.Pyrrhotite, relation to other sul-

f ides. (Hewitt , Schwartz).. . . .

619764

837

39r

583

Quartz family minerals. (Dake,Fleener, Wilson) [Book re-viewl. . . 905

Q u a r t z , l a m e l l a r . . . . . . . . . 3 5 4Qtartz wedge, substitute for.

(West). 531Quartz with pinakoid faces from

Chaffee Co., Colo. (Rogers,Cahn) . . 178

Quebec phlogopite-apatite depos-i ts , o r ig ino f . @andes) . . . . . . . 359

Q u e n s e l , P . . . . . . . . . . . . . . 5 4 2Quenstedite. 739Quirke, T. T. Direct projection of

o p t i c f i g u r e s . . . . . . . 1 7 7 , 5 9 5

Ramsdell, L. S. Symmetry, unitcell and composition of hank-s i t e . . . . 1 7 7

837702

180J / O

t 7 l

916 INDEX

RhodochrositeRhomboclase.

Rare-earth content of fluorite ofEngland and Wales. (Aspland,

B r a m m a l l , L e e c h ) . . . . 4 I 5

Rasor, C. A. Bromyrite fromTombstone,Ar iz. . . 157

Reed, J. C. Nickel content of anAlaskan troctolite. . I77

Regional granitization and meta-morphism in New England.(Currier) 168

Reyes, J. M. with Ahlfeld, F. Min-eralogie von Bolivien. [Bookreviewl 538

' 8 1 6740

Richmond, W. E. Jr. Tarbuttite.178,881and Gonyer, F. A. Pol-

lucite. . 783and Winchell, H. X-ray

studiesofsulfosalts. . . 82Land Wolfe, C. W. Crystal-

lography oflanarkite. . 799Roebling medal: Presentation to

CharlesPalache. (Kraus) ... 54Response. (Palache).. .. 58

R<imerite. (wolfe) 468Roemerite. 734Rogers, A. F. Lapis lazuli frorn San

Bernardino Co., Calif. LllDiadochite. a mineraloid

from New Idria mine, SanBenito co., cal i f . . 178

Merosymmetry vs. mero-hedrism. 178

and Cahn, L. Quartz withpinakoid faces from ChaffeeC o . , C o l o . . . . . 1 7 8

R o s 6 n . O . . . . . 5 4 2Rost, R.. . 667Rubidium dithionate, twinning in.

@arnes,Slendling). .. 391Russellite, a new British mineral.

(Bann is te r , Hey) . . . Lz l

Sanadine, atomic packing modelo f . (Lord ,Lopez) . . . . . . 76 ,182

Sanadine (indices) 429Sarkinite from Franklin Furnace,

N. J, (Palache, Bauer, Ber-man) . . 527

Saylor, C. P. Optical analysis ofimmersion methods with refer-ence to sensitivity of thedouble diaphragm method. . . 179

Scapoli te. . . 379Scawtite pseudomorphs after spur-

r i t e . ( T i l l e y ) . . . . . L 2 lSchaller,

'W. T. An unusual foffi of

thaumasite from Ducktowndistrict, Tenn.. 876

Johannsenite, a nelv !tan-gatrese pyroxene. 575

and Fairchild, J. G. Cad-mium in smithsonite from NewMexico. 894

Scheteligite. (Bjlrlykke) 293S c h o l t z , D . L . . . . . . . . 6 +Schwartz, G. M. with Hewitt,

R. L. Relation of pyrrhotite toother sulfides. L7L

Sedlecki j , I . D.. 294SerduCenko, D. R... 666Shaub, B. M. Occurrence, crystal

habit a:rd compositior of uran-inite from Ruggles Mine, nearGralton Center, New HamP.. 334

Some applications of nat-ural color photography inmineralogy.. . . . . 20

Shimer, J. A. Atomic packingmodel of zi tcon... . 66,182

Silicification types along hangingwall of London fault, MosquitoRange, Colo. (Butler) 167

Silicosis and aluminum. (Emmons,F r i e s ) . . . . . . 6 5 4

Simpson, E. S. New and littleknown meteorites found inwesternAust ra l ia . . . . . 538

Skoli te.(Smulikowski). . . . 54ISlawson, C. B. Occurrence of large

halite crystals 179Smith, E. S. C. andParsons, W'. H.

Sfudies in mineral fluores-cence" 513

Smith, H. T. U. Models to aid invisualizing optical properties ofcrystals . . 17 9, 629

with Lane, J. II. Jr. GraPh-ic method of determining oPtic

sign and true arial angle fromrefractive indices. . . .

Smul ikowsk i , K . . . . . . . .Soda-killinite. (euensel)Soda NiterSodium bicarbonate from Searles

Lake, Catif. (Foshag).Spencer , L . J . . . .Spessartite crystals, tabular. in

muscovite. (Mountain, Kent).Sphene.Siereoscopic crystal a."*i"s.

(Fisher)Stevens, R. E. New analyses of

lepidolites and their interpre_tat ion..

with Miser, H. D. Taenio_lite from Magnet Cove, Ar_kansas.

Stewart, D. Jr. Notes on someAdelie Land rocks. . .

Stibio-microlite. (euensel, Berg_gren, Ros6n, Westgren).

Stilbite.Stilpnomelane group of minerals.

(Hutton)Stoiber, R. E. with Bannerman.

H. M. Fluorjte deposits inWestmoreland, New Hamp.. .

Stose, G. W. and Glass, J. J. Gar_net crystals in cavities in meta_morphosed Triassic conglom_erate, York Co., penaa.. .. . . .

Structure models, making. (Gor_don). . .

Sujkowski, 2..Sulfosalts, crystallographic and

x-ray studies of. (palache,Richmond,'Winchell),. . . . . . .

Sulphate deposits of northernChile, mineralogy of. @4ndy).

Sulphate minerals of the ComstockLode, Nevada. (Milton, John_ston). . .

Sulphur.Surface reflection areas in Weissen_

berg photographs. (Buerger). .Switzer, G. Crystallography of

braunite from Nagpur, fndia. .

INDEX

Paragenesis of CenterStratrord, N. Ha_mp., pegna-t i t e . . . . 8 l l

-- Veatchite, a new calciumboratefromlang, Cali f , . . . . . . 4og

Szomolnok i te . . . . . . I l4

Taeniolite from Magnet Cove,Ark . (Miser , S tevens) . . . . . . . 104

Tamarugite. 123Tarbutt i te. @ichmond). . . . . .128, 8S1Taylor, R. E. with Hurlbut, C. S.

Jr. Minerals associated withhilgardite. 899

T a y l o r , W . H . . . . . . . . . . . S 4 0Tetrahedrite. 703Thaumasite, unusual fonrr of, from

Ducktown, Tenn. (Schaller). . g76Thenardite.Thiesmeyer, L. R. Origin of fibrous

gypsum veins in the Lykinsand Morrison formations ofColorado. l7g

Thioelaterite. (Dunicz).. 542Thompsonite (optical data). ; . . . . 286Thornley, P. C.. . 540T i l ley , C. M. . . . t z lTomlinson, W. H. with Meier,

A. E. Harmotone of hydro-thermal origin from DelawareCo., Penna. 174

Torbernite. 275Tourmaline, unit cell and space

group. (Buerger, Parrish).. . . . 182Tourmal ine , . . .210,813Triphylite (analysis) Bt4Tsumebite, crystallography of.

( L a F o r g e ) . . . . . . . . . . . . . 2 7 2Tungsten mineralization at Oreana,

Nevada. (Kerr). 173Turquois. 7llTyler, S. A. and Marsden, R. W.

Heaqy mineral methods ap-plied to pre-Cambrian rocksofsouthshoreof LakeSuperior 180

Ulexite . 7l2Ungemachite and clino-ungemach-

ite, new minsl4ls from Chile.(Peacock, Baady). 314

917

457541542712

169356

4157rr

169

607

104

464

542? ( t

4 1 5

166

430

t70542

821

669

175699

766

649

918

Ungemachite.Universal stage axial angle aP-

paratus. (Fisher).Uraninite atrd associated minerals

frorn I{addam Neck, Conn.(Ingerson).

Uraninite from Ruggles MinetGrafton Center, N. IIamP.'occutrence' crYstal habit andcomposition of. (Shaub). . . . . .

Vaux. G.Veatchite, a new calcium borate

from Lang, Calif. (Switzer) ' . .

Vermiculites aud mixed vennicu-lite-chlorites, structure of.(I{endricks, Jefferson). . .. .

Vhay, J. S. Pyrophyllite dePosit insoutheastern Newfoundland 180

Vincent, H. C. G.. 539Vivianite from Ruth, Nevada.

(Gianel la) . . . .

VivianiteVoltaite.

INDEX

269

Wavellite, occurrence in Giles Co.,Va. (Artz)

Wave surfaces and indicatrices.(Parsons). . .

W a y m o u t h , C . . . . . .Webb, R. W. with Murdoch, J.

Notes on some minerals fromsouthern Cali fornia . . . .

Wendling, A. V. with Barnes,W. H. Nature of twinning inKandRb dithionates. . . . . . .

West, C. D. Substitute fot qtartzwedge used with the Polarizingm i c r o s c o p e . . . . . .

W e s t g r e n , A . . . . . .Wherry, E. T. Note on interpreta-

tion of etch figures. 156Wilkeite. 13

Wilson, B. H. and Fleener, F' L'

with Dake, H' C. Quartz fam-

ily minerals. [Book review]' ' ''Winchell, A' N. AnthoPhYllite and

cummingtonite-grunerite se-

r i e s . . . . .Winchell, H' New microPYcnom-

eter for determination of den-

sities of heavY solids. .with Richmonal' W. E. X-

ray study of sulfosalts.Withamite, nature of . (Hutton) ' ''Wolfe, C. W. Cantizzatite and

bismuthinite from Vulcano.''Note on rdmerite.with Richmond,W. E. CrYs-

tallograPhYoflanarkite. . . '.'Wright, W. I. ComPosition and oc-

cuffence of garnets . ... "

X-tay image method of chemicalanalysis. (II6mos).

329

805

821.415

790468

799

436

215

Yeatmanite, a new mineral, andsarkinite from Franklin, N. J.(Palache, Bauer, Berman). .I7 6' 527

Yosemite region, heavY mineralsin granitic rocks of. (Pabst). .46, t76

Young, J, A. Jr. Keilhauite, a guide

mineral to the Sterling granitegneissofRhodelsland .. . ' 149

Zeiler, H. W. OPtical methods ofmeasuring in reflected Polar-i z e d l i g h t . ( B e r e k ) . . . " ' 1 8 1

Zeolites in New Mexico' (Need-

h a m ) . . . . . . . 2 8 5

Zinckenite and keeleyite, identityof. (Vaux, Bannister). 539

Zir:cor', atomic Packing model of.(Shimer). . .66,182

Zollling as an explanation of opticalanomalies of a Vermont Plagio-c lase . (Mu lho l land) . . . . . . 534

905r69

334

539

409

851

+148r7749

664

r76540

349

391

5 3 15+2