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Move over diamonds, now there's something 58% harder

Diamonds are made from carbon atoms that have undergone a process aligning them in an isometric-hexoctahedral crystal lattice. Clear to yellow, sometimes flawless, diamonds are also the second most stable form of carbon (behind graphite). However, diamonds are no longer the hardest natural substance — at least not according to New Scientist. That honor now falls to lonsdaleite, which is 58% harder than diamonds.

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