Rocks And Minerals

Front 1

cubic cleavage; lead-gray color and streak; brittle; metallic; 2.5-5.5

Back 1

Galena - PbS

Front 2

two direction cleavage; brassy yellow; greenish black streak; brittle; metallic

Back 2

Chalcopyrite - CuFeS2

Front 3

non-conchoidal fracture; copper color; metallic; cooper streak; malleable; 2.5-5.5

Back 3

Copper - Cu

Front 4

conchoidal fractuce; brassy yellow; greenish to brownish black streak; maybe cubic; fools gold; metallic; 5.5

Back 4

Pyrite - FeS2

Front 5

one direction cleavage; metallic to dull luster; black color and streak; greasy feel; soils hand; 2.5

Back 5

Graphite - C

Front 6

non-conchoidal; metallic luster to earthy luster; range from brown to yellow; streak brownish yellow; irregular shape; 2.5-5.5

Back 6

Limonite

Front 7

non-conchoidal fracture; steel gray color; metallic luster; redish streak; 2.5-5.5

Back 7

Hematite - Fe2O3

Front 8

Six directions; pale yellow to brownish; pale yellowish brown streak; metallic luster; smeels bad; 2.5-5.5

Back 8

Sphalerite - ZnS

Front 9

non-conchoidal fracture; black color and streak; brittle; magnetic

Back 9

Magnetite - Fe3O4

Front 10

yellow; pale yellow streak; smells terrible; 2.5

Back 10

Sulfur - S

Front 11

Cubic; various colors usually redish with white or pale red streak; soluble in water; salty; vitreous luster; 2.5

Back 11

Sylvite - KCl

Front 12

one direction; flexible, colorless, white or gray; white streak; 2.5

Back 12

Gypsum - CaSO4 2H2O

Front 13

rhombohedral; white gray streak; reacts with HCl with vigorous effervescence; 2.5-5.5

Back 13

Calcite - CaCO3

Front 14

rhombohedral; gray white streak; doesnot react with HCl unlessed powdered; 2.5-5.5

Back 14

Dolomite - CaMg(CO3)

Front 15

rhombohedral; yellowish gray; gray plae brown streak; does not react with HCl; 2.5-5.5

Back 15

Siderite - FeCO3

Front 16

octahedral; purple, green, yellow, white, etc; white streak; vitreous luster; 2.5-5.5

Back 16

Fluorite - CaF2

Front 17

three directions; white gray with white streak; pearlly luster; 2,5-5.5

Back 17

Anhydrite - CaSO4

Front 18

on direction; greenish brown or violet; white streak; vitreous luster; 2.5-5.5

Back 18

Apatite - Ca5(PO4)3(OH,F,Cl)

Front 19

three direction; white; vitreous luster but maybe pearlly; 2.5-5.5

Back 19

Barite - BaSO4

Front 20

not distiant cleavage or fracture; hard; vitreous luster; white, blue, red, pink, brown, etc; 9

Back 20

Corundum - Al2O3

Front 21

cubic; many colors; salty; vitreous luster; 2.5

Back 21

Halite - NaCl

Front 22

one direction; soft; greasy feel, pearlly luster; white; 2.5

Back 22

Talc - Mg3Si4O10(HO)2

Front 23

one direction; pieces are flexible and elastic; pearly luster, transparent; 2.5

Back 23

Muscovite - KAl2(AlSi3O10)(OH)2

Front 24

one direction; flexible elastic; blackish brown; vitreous luster; thin sheets; 2.5

Back 24

Biotite - K(Mg,Fe)3(AlSi3O10)(OH)2

Front 25

no cleavage; silky luster greenish gray brown, 2.5-5.5

Back 25

Serpentine - Mg6(Si4O10)(OH)8

Front 26

one direction; flakes flexible but not eleastic; green; 2.5

Back 26

Chorite

Front 27

too fine; soft, earth mass, earthy color when breathed upon; 2.5

Back 27

Clay Minerals

Front 28

two directions; blue, green, or white; blade crystals; hard across the crystals; 2.5-5.5

Back 28

Kynite - Al2SiO5

Front 29

conchoidal; greasy luster; milky color; welled formed question; 5.5

Back 29

Quartz - SiO2

Front 30

conchoidal; vitreous luster, dark red to brown; crystallized; 5.5

Back 30

Garnet

Front 31

conchoidial fracture; pale green color; fine grained; sugary crystals; 5.5

Back 31

Olivine - (Mg,Fe)3SiO4

Front 32

one direction; plae green or blue; similar to quartz but harder; 5.5

Back 32

Beryl - Be3Al2Si6O18

Front 33

one direction; dull luster; pistachio green; 5.5

Back 33

Epidote

Front 34

one direction; silky luster, brown; twins in the form of crosses fairly comon; 5.5

Back 34

Staurolite

Front 35

Ultramafic; plutonic

Back 35

Dunite, Peridotite

Front 36

plutonic; mafic

Back 36

Gabbro

Front 37

plutonic; intermediate

Back 37

Diorite

Front 38

plutonic; felsic

Back 38

Granite

Front 39

volcanic; ultramafic

Back 39

Komatite

Front 40

volcanic; mafic

Back 40

basalt

Front 41

volcanic: intermediate

Back 41

Andesite

Front 42

volcanic: Felsic

Back 42

Rhyolite

Front 43

all glass

Back 43

Obsidian

Front 44

vesicular, glassy, volcanic rock

Back 44

Pumice

Front 45

welded ash

Back 45

Tuff