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Find out how many minerals contribute to the hardness and rocks?

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asked Feb 7, 2017 by weng (140 points)

1 Answer

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It is not the number of elements rather it is the nature of chemical bonds, crystalline structure, heat and pressure. A comprehensive answer would take a semester to deliver and a lifetime to begin to understand.
answered Feb 9, 2017 by Weasel (49,290 points)