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36 Cards in this Set

  • Front
  • Back
Metallic; hard; dark gray streak; brass yellow color; tarnishes brown; "fools gold"; hard
Pyrite
Metallic; dark gray streak; hard; dark gray to black; tarnishes gray; strongly magnetic
Magnetite
Metallic; soft; red to red brown streak; silvery gray; black or brick red; tarnishes red
Hematite
Metallic; soft; dark gray streak; brass yellow color; tarnishes dark brown or purple
Chalcopyrite
Metallic; soft; dark gray streak; silvery gray; cubic cleavage good to excellent, very heavy
Galena
Metallic; soft; yellow-brown streak; yellow brown to dark brown (rusted iron); tarnishes yellow to brown
Limonite
Metallic; soft; dark gray streak- dark gray to black; greasy feeling; H 1; rubs off on hands
Graphite
Metallic; soft; yellow-brown streak; yellow brown or dark red; tarnishes brown; may appear nonmetallic or metallic; excellent cleavage; smells like sulfur
Sphaelerite
Metallic; soft; copper color; tarnishes dark brown or green; malleable
Copper
Light colored non-metallic; hard; white or gray; opaque; two cleavages at nearly right angles; may have parallel stritations; H 6
Plagioclase (feldspar)
Light colored non-metallic; hard; pink, white or green; opaque; may have "discontinuous veins" of different colored material. H 6; two cleavages at nearly right angles
Orthoclase
Light colored non-metallic; hard; colorless, white, gray, or other colors; glassy luster; transparent or translucent; H 7; crystals are hexagonal prisms and pyramids; may be massive; conchoidal fracture
Quartz
Light colored non-metallic; hard; pale olive green to yellow; conchoidal fracture; transparent or translucent; H 7
Olivine
Light colored non-metallic; hard; pink to yellow green; may form dodecahedron crystals; H 7
Garnet
Light colored non-metallic; soft; colorless, white, yellow, green, pink, or brown; three excellent cleavages; breaks into rhombohedrons; reacts strongly (fizzes) in dilute HCl; H 3
Calcite
Light colored non-metallic; colorless, white, gray, creme, or pink; 3 excellent cleavages; breaks into rhombohedrons; reacts with dilute HCl only if powdered; H 3.5-4
Dolomite
Light colored non-metallic; soft; colorless, white, or gray; massive or tabular crystals, or blade or needle-shaped; can be scratched with fingernail; H 2
Gypsum
Light colored non-metallic; soft, colorless, white, yellow, blue, brown, or red; cubic crystals and breaks into cubes; salty taste; H 2.5
Halite
Light colored non-metallic; soft; colorless, purple, blue, gray, green, yellow; forms cubes with octahedral cleavage, and octahedrons; H 2-2.5
Fluorite
Light colored non-metallic; soft; Colorless, yellow, brown, or red-brown; splits along one excellent cleavage into thin, flexible transparent sheets; 2-2.5
Muscovite (Mica)
Light colored non-metallic; soft; opaque white, gray, green, or brown; can be scratched with fingernail; greasy or soapy feel; H1
Talc
Light colored non-metallic; soft; opaque earth white to very light rown; H 1-2; may feel "dusty"
Kaolin (clay, kaolinite)
Light colored non-metallic; soft; yellow; smells like rotten eggs; generally easy to crumble; H 1
Sulfur
Dark colored non-metallic; hard; opaque black; 2 cleavages at about 60 and 120 degree angles; H 5.5
Hornblende
Dark colored non-metallic; hard; opaque black; 2 cleavages at nearly 90 degree angles; H 5.5
Augite
Dark colored non-metallic; hard; translucent gray, brown, or purple; glassy luster; transparent or translucent; H 7; crystals are hexagonal prims and pyramids; may be massive; conchoidal fracture
Quartz
Dark colored non-metallic; hard; transparent to translucent dark red to black to green; may form dodecahedron crystals, H 7
Garnet
Dark colored non-metallic; hard; transparent or translucent olive green; conchoidal fracutre; H 7
Olivine
Dark colored non-metallic; soft; translucent to opqaue yellow-brown to brown; may appear submetallic; octahedral cleavage; H 3.5-4; light yellow streak; may smell like sulfur
Sphaelerite
Dark colored non-metallic; soft; purple, white, or clear cubes or octahedrons with octahedral cleavage; white streak; H 4
Fluorite
Dark colored non-metallic; soft; black; splits easily along one excellent cleavage; thin, flexible sheets; may occur as hexagonal books; H 2.3-3
Biotite (Mica)
Dark colored non-metallic; soft; green; splits easily along one excellent cleavage; thin, flexible sheets; may occur as hexagonal books; 2-3
Chlorite
Dark colored non-metallic; soft; translucent to opaque dark green; easily scratched with fingernail; white streak; feels soapy; H 1
Talc
Dark colored non-metallic; soft; dull earthy luster; opaque rusty brown or yellow-brown yellow-brown streak; H 1.5-5.5
Limonite
Dark colored non-metallic; soft, opaque earthy red; red to red-brown streak; H 1.5-6
Hematite
Dark colored non-metallic; soft; Black; greasy feeling; H1; rubs off on hands
Graphite