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bagirrra123 [75]
2 years ago
6

The hardest known mineral is _____. topaz talc diamond graphite

Chemistry
2 answers:
vagabundo [1.1K]2 years ago
5 0
<span>The hardest known mineral is diamond.
</span>
liberstina [14]2 years ago
4 0

Hi there, thanks for asking a question here on Brainly!


The hardest known mineral in this planet is the diamond. 


Answer: Letter C ✅


Hope that helps! ★





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Answer and Explanation:

a) The direction is shown in the cube diagram attached to this solution.

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Cos Φ = (1.1 + 1.1 + 1.2)/√((1² + 1² + 1²)(1² + 1² + 2²))

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