which is the hardest rock
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Answered by
2
Diamond is the hardest rock present on the earth
Answered by
7
Before, Diamond was considered as the hardest rock but 2 new rocks have found to be most hardest
Those are --
1. Wurtzite boron nitride
2. mineral lonsdaleite
Those are --
1. Wurtzite boron nitride
2. mineral lonsdaleite
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