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3 Cards in this Set
- Front
- Back
Gypsum |
light colored, non-metallic luster/softer than penny/ white, tan-pink |
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Plagioclase Feldspar |
light colored, non-metallic luster/harder than glass/white tan/cleavage in 2 directions @ approx 90/striations in one direction |
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Augite |
Dark colored, non-metallic luster/about the same as glass/black/cleavage in 2 directions @ approx 90/splintery appearance |
