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Can you find what is this table about and fill in the missing information

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Can you find what is this table about and fill in the missing bits

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posted Jul 7, 2018 by Hanifa Mammadov

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1 Answer

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Best answer

Moh's scale (hardness) - name - elemental formula - absolute hardness - visual example
4 - Fluorite - CaF2 - 21
9 - Corundum Al2O3 - 400
3 - Calcite - CaCO3 - 9
8 - Topaz - Al2SiO4(OH-,F-)2 - 200

answer Dec 8, 2018 by Jcm



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