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4 votes
A penny can scratch an unknown mineral. The mineral _____.

1.must be talc
2.is softer than a diamond
3.is harder than a diamond
4.has perfect cleavage

2 Answers

5 votes

The correct answer is, softer than a diamond.


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User Niall Oswald
by
7.8k points
2 votes
The correct answer for the question that is being presented above is this one: "2.is softer than a diamond." A penny can scratch an unknown mineral. The mineral is softer than a diamond. Diamond is considered as the hardest mineral and cannot be scratched by any kind penny.

User Boggin
by
8.0k points
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