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notka56 [123]
3 years ago
8

The hardest mineral is _____ with a hardness of _____.

Biology
2 answers:
IgorC [24]3 years ago
6 0
The answer you're looking for would be "D: Diamond; 10". Diamond is known to be the hardest mineral out there. Plus, the scale is marked from 1-10, 1 as the softest, and 10 as the highest.
DanielleElmas [232]3 years ago
3 0
The hardest mineral is a diamond with a hardness of 10.

Hope this helps!
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