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5 Cards in this Set
- Front
- Back
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Rocks
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Aggregates of one or more kinds of minerals
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Minerals
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Inorganic, naturally occurring substances that have a crystalline structure and a definite chemical range of composition
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Luster
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How light reflects from the surface of an object
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Streak
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The color of a substance after it has been ground to a fine powder
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Hardness
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The measure of resistance to scratching
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