martagalaan10 martagalaan10

07-06-2020
Biology

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What could the hardness of a mineral be if it can be scratched by a cent coin?

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nourakka1 nourakka1

07-06-2020

It can become any of these things, Gypsum, Calcite, Fluorite, or Apatite

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kiarauwu kiarauwu

07-06-2020

The hardness of a mineral can be 3 or less

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