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jenyasd209 [6]
3 years ago
9

What would you expect to happen if you rubbed a mineral of hardness 7.5 against a piece of quartz?

Biology
2 answers:
lapo4ka [179]3 years ago
8 0
<span>Quartz also has a hardness level of 7.5, so rubbing another mineral with a 7.5 will not affect it.  Hope this helps</span>
inysia [295]3 years ago
3 0
You would expect a scratch on the quartz since quartz is on a hardness scale of 7 and the mineral you are rubbing against it is at a hardness scale of 7.5
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