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A mineral can be scratched by quartz. Its hardness is: A.equal to 7 B.less than 7 C. greater than 7 D.equal to or less than 7​
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1 vote
A mineral can be scratched by quartz. Its hardness is:

A.equal to 7

B.less than 7

C. greater than 7

D.equal to or less than 7​

User Finferflu
by
6.1k points

1 Answer

5 votes

Answer:

Quartz has a hardness of 7.

Step-by-step explanation:

User Jehon
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