Mineral Quiz
Order by
18 terms
Terms | Definitions |
|---|---|
 Amphibole |  White streak, elongated crystals, cleavage 60-120 degrees, hard |
| Biotite |  Foliated aggravates, basal cleavages, viterous, soft |
| Calcite |  Rhomboherderal cleavage, reaction to HCL, soft |
| Galena |  Perfect cubic cleavage, soft |
| Graphite |  Metallic dull luster, soft with perfect cleavage |
| Gypsum |  One perfect cleavage, vitreous/pearly, soft |
| Halite |  Cubic crystals/cleavage, very salty, soft |
| Hematite |  Tabular crystals, hard, red/brown streak |
| Magnetite |  Magnetic, hard |
| Muscovite |  Perfect basal cleavages, pearly-vitreous, semi soft |
| Olivine |  Vitreous luster, sugary texture, conchodial cleavage |
| Orthoclase |  Tabular crystals , rectangular crystals, 90 degree cleavage |
| Plagioclase Ca |  Tabular crystals, rectangular 90degree cleavage, twining striations |
| Plagioclase Na |  Tabular crystals, rectangular cleavage, white or grey |
| Pyrite |  Metallic luster, striated cubic crystals, hard |
| Pyroxene |  Crystals 8 sided, vitreous, hard |
| Quartz |  Hexagonal crystals, very hard, |
| Talc |  very soft, basal cleavages, pearly luster, feels soapy |
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