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a naturally occuring, inorganic solid with a definate chemical compositions and an orderly arrangement of atoms |
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How many elements occur naturally in the earth's crust? |
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What is the most common mineral? |
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What eliments does silica contain? |
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minerals that brake smooth |
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minerals that brake uneven/rough/jagged |
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the scale for hardness is called: |
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minerals that reflect light |
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powdered color of a mineral |
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wieght compared to same volume in water |
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what 2 charictaristics make up a gem |
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it has to be beutiful and rare |
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a mineral/rock that contains a useful element |
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seperating minerals and dirt |
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