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19 Cards in this Set
- Front
- Back
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Talc |
- Hydrous Mg Silicate - silicate - soft (1) - cleavage (1) - green, white, gray - soapy feel - pearly/greasy |
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Muscovite |
- K Al Silicate - Silicate - soft (2-2.5) - cleavage (1) - transparent sheets |
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Olivine |
- Mg Fe Silicate - Silicate - Hard (6.5-7) - Various shades of green |
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K-Feldspar |
- K Al Silicate - Silicate - Hard (6) - Cleavage (2 @ 90) - pink, light gray, milky white |
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Plagioclase |
- Ca Na Al Silicate - Silicate - Hard (6) - Cleavage (2 @ 90) - Blue, blue-gray, milky white |
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Amphibole |
- Ca Na Fe Mg Silicate - Silicate - Hard (6) - Cleavage (2 @ 60/120) - Dark green, Black |
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Pyroxene |
- Ca Fe Mg Al Silicate - Silicate - Hard (6) - Cleavage (2 @ 90) - Green, gray/green, black |
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Garnet |
- Ca Fe Al Silicate - Silicate - Hard - Fracture resembles poor cleavage - red, brown , brown/red, pale green |
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Quartz |
- SiO2 - Silicate - Hard (7) - conchoidal.irregular - colourless when pure, but can be wide range of colour |
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Biotite |
- K Fe Mg Al Silicate - Silicate - Soft (2.5 - 3) - Cleavage (1) - Gray/black |
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Galena |
- PbS - Sulphide - metallic - shiny gray - gray-black streak |
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Chalcopyrite |
- Ca Fe S2 - Sulphide - Metallic - Brass yellow, tarnishes bronze/ iridescent - greenish black streak |
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Pyrite |
- Fe S2 - Sulphide - metallic/submetallic - pale brass yellow/darker from tarnish - greenish, brownish/black streak |
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Gypsum |
- Ca S O4 * 2(H2O) - Sulphide - Soft (2) - Cleavage (1) - White/Colourless |
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Sphalerite |
- ZnS - Sulphide - Soft (3.5 - 4) - Cleavage (6) - May be metallic - yellow, brown, black - pale yellow/brown streak |
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Magnetite |
- Fe4O3 - Oxide - Metallic/Submetallic - Black - Black streak - Magnetic |
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Hematite |
- Fe2O3 - Oxide - Hard - Metallic/Submetallic - Red brown, black, steel gray - may be weakly magnetic |
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Halite |
- Na Cl - Halide - Soft (2.5) - Cleavage - colourless - white (impure have variety of colour) - Salty Taste |
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Calcite |
- CaCo3 - Carbonate - Soft (3) - Cleavage - White/ colourless (tinted colour in light) |
