Diamonds Are The Hardest Known Natural Material.

This extreme hardness, measured at 10 on the Mohs scale, means only another diamond can scratch a diamond. It makes them invaluable for cutting, grinding, and drilling tools in various industries, far beyond just jewelry.

Source

https://en.wikipedia.org/wiki/Diamond

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Published: March 29, 2026
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Diamond Geology Materials Science Hardness Mohs Scale Industrial Diamonds Material Properties Carbon

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