Term
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Definition
| Metallic, Gray streak, perfect cubic cleavage |
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Term
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Definition
| metallic, black streak, magnetic |
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Term
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Definition
| metallic, black streak, steel gray, greasy feel |
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Term
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Definition
| Metallic, green black streak, golden yellow color |
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Term
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Definition
| Metallic, Green black streak, Brass yellow color |
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Term
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Definition
| Metallic, Reddish brown streak, steel gray color |
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Term
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Definition
| metallic,yellow brown streak, yellow brown or black color |
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Term
| PYROXENE GROUP (augite most common) |
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Definition
| Harder than glass, Cleavage prominent- 2 directions nearly 90 degrees |
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Term
| AMPHIBOLE BROUP (Hornblende most common) |
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Definition
| Harder than glass, Cleavage prominent-2 directions at appx. 60 and 120 degrees |
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Term
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Definition
| Harder than glass, cleavage absent, olive green, commonly in aggregates of small glassy grains |
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Term
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Definition
| Harder than glass, cleavage absent, red brown or yellow color, glassy luster, conchoidal fracture |
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Term
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Definition
| softer than glass, cleavage prominent, brown to black color, 1 perfect cleavage |
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Term
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Definition
| softer than glass, cleavage prominent, green to very dark green; 1 cleavage direction |
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Term
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Definition
| softer than glass, cleavage prominent, yellow brown color, resinous luster, 6 directional cleavage |
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Term
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Definition
| softer than glass, cleavage absent, red earthy appearance |
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Term
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Definition
| harder than glass, cleavage prominent 2 directions 90 degrees, pink white or green |
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Term
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Definition
| harder than glass, cleavage 2 direction 90 degrees, white blue gray, striations on some cleavage planes |
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Term
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Definition
| harder than glass, no cleavage, conchoidal fracture |
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Term
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Definition
| softer than glass, perfect cubic cleavage, salty |
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Term
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Definition
| softer than glass, cleavage 1 direction poor in other 2 |
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Term
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Definition
| softer than glass, cleavage perfect 3 directions 75 degrees |
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Term
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Definition
| softer than glass, 3 directions of cleavage as in calcite, HCL only if powdered |
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Term
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Definition
| softer than glass cleavage 4 directions |
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Term
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Definition
| softer than glass, perfect cleavage 1 direction, thin elastic sheets |
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Term
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Definition
| softer than glass , cleavage , green to white, soapy feel, pearly luster |
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Term
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Definition
| softer than glass, no cleavage, white to red; earthy masses |
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