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Definition
| non-metalic, dark color, harder than glass, cleavage, 60 and 120, black-dark green-brown |
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Definition
| non-metalic dark color, softer than glass, cleavage, thin flexible sheets, brown or black. |
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Definition
| non-metalic, light color, pink to red, harder than glass, blocky clevage at 90 degrees, pearly to vitreous luster |
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Term
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Definition
| non-metalic, light color, harder than glass, grey to white, blocky clevage at 90 degrees, planes may show fine striations. |
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Term
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Definition
| non-metalic, light color, harder than glass, no clevage, glassy to transparent, often with conchordial fracture. many colors. |
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Definition
| non-metalic, light color, harder than glass, no clevage, various shades of green, yellowish, glassy. |
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Term
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Definition
| non-metalic, light color, softer than glass. Fizzes with acid, clevage at 75 degrees |
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Term
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Definition
| Non-metalic, light color, softer than glass, clevage, thick transparent layers, scratches easy |
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Term
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Definition
| non-metalic, light color, softer than glass, no clevage, scratches easily. |
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Definition
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