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| any substance that forms naturaly |
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| has no organizms within it or does not occur naturaly |
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| something that has a structure of flat planes af cubes (usually transparent) |
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| th quality of being hard or soft (mose hardness scale) |
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| a narrpow smear or band of color |
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the way a rock reflects light off of its sides
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the characteristic appearance of a broken surface, as of a mineral.- Dictionary.com |
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a precious or semiprecious stone that can be cut and polished for use as a gem.-Dictionary.com |
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| an extremly hard crystalyzed form of carbon |
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