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can two different minerals to have the same chemical composition?

asked May 11, 2013 by I am a gem (380 points)

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they can

answered May 12, 2013 by I am a gem (380 points)
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Yes, if they crystallize differently. Diamond and Graphite have the same formula but are entirely different minerals. Calcite and Aragonite are also two different minerals with the same chemical formula.

answered May 13, 2013 by hershel (49,750 points)

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