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Calcite; fizzes in acid; white, yellow, or colorless; non-silicate
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Halite; salty taste; cubic; colorless/white; non-silicate
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Gypsum; can scratch with your fingernail; white/transparent; non-silicate
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Graphite; smudges fingers; like pencil lead; black; non-silicate
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Hematite; red-color; non-silicate
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Magnetite; strongly magnetic; black; non-silicate
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Limonite; red streak; yellow, brown, black color; non-silicate
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Dolomite; fizzes when powdered; pink, tan color; non-silicate
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Fluorite; various colors; can come in green, white, yellow, or purple; non-silicate
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Galena; very high specific gravity (7.6); cubic; lead grey streak; shiny black color; non-silicate
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Chalcopyrite; often cubic; green-brown; pale brass yellow color; non-silicate
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Sphalerite; powdered streak smells like rotten eggs; yellow brown to black color; non-silicate
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Pyrite; tarnished to purple; shinier; brass yellow color; non-silicate; fake gold!!!
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Biotite; black sheets; brown to black color; silicate
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Muscovite; clear sheets; colorless/light yellow color; silicate
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