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if an unknown mineral has a hardness between 5 and 9, what could you do to the mineral to find out more about its hardness?
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if an unknown mineral has a hardness between 5 and 9, what could you do to the mineral to find out more about its hardness?

User Onoma
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1 Answer

2 votes
you need to do a
scratch test
User Simmer
by
7.3k points
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