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Mohs hardness of corundum

Input interpretation

corundum (mineral) | Mohs hardness
corundum (mineral) | Mohs hardness

Result

9
9

Hardness comparisons

harder than topaz (Mohs 8)
harder than topaz (Mohs 8)
softer than diamond (Mohs 10)
softer than diamond (Mohs 10)

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