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Slide No. 1

Rock Forming

Minerals

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Slide No. 2

yratnemides

igneous

of rockssepyt3eraerehT

metamorphic

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Slide No. 3

Quartz SiO

crystalmetamorphic, igneoussedimentary

2)

,ratrom,enotsmegasadesuetihwotraelc

erutcarfladiohcnoc7(ssendrah

,sutarappacifitneicsyrtsudnicinortcele

South CarolinaSand

important:

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Slide No. 4

microcline

albite

Feldspar

igneous,

cleavagehardness (<7)white to pinkceramics, ornamental

metamorphicsedimentary (clastic)

,

(Na,K,Ca)(Al)Si2O8Group

important:

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Slide No. 5

TremoliteCa2(Mg,Fe,Al)5 (Al,Si)8O22 (OH)2

vage (56 and 124 )green to black

o oleac

Actinolite

igneous, metamorphichornblende(

some forms are used asasbe toss

Amphibole Group

most commo )nimportant:

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Slide No. 6

Pyroxene(Mg,Fe)2SiO4(Ca,Na)(Mg,Fe,Al)(Al,Si)2O6

hedenbergite

Group

igneous metamorphic,(augite most common)

cleavage (87 and 93 )short prismsdarkused as specimens, some gemstones

o o

important:

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Slide No. 7

Mica

g,repapllaw,tnacirbul

a nifoorperif,lcirtcelenidesukcalbotraelc

elbixelfsteehsnihtegavaelctcefrep

K(Fe,Mg,A )l A3 lSi3O1 (F0 ,OH)2

Group

muscovite

etamorphic, igneousaccessory: sedimentary

lepi olited

important: m

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Slide No. 8

greenconchoidal fracturevitreous looksome used as a gem,

abrasives.

Olivine (Mg,Fe)2SiO4

important: igneous

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Slide No. 9

CaCO3Calcite

sedimentarymetamorphic

mportanti :

Dolomite CaMgCO3

rhombohedral crystalseffervesces with acidused in manufacture of cement,fertilizer

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Slide No. 10

minerals by chemical group, name

U.S. Geological Survey, minerals in U.S.

Link to all state geological surveyshttp://www.kgs.ukans.edu/AASG

http://minerals.er.usgs.gov/minerals

mocs.rieeallgl.raenmi//:ptth

Web Sites of Interest