Looks like diamond is no longer the hardest substance in the world. That distinction now goes to the material of lonsdaleite, which scientists have discovered is 58% harder.
Diamonds are relatively easy to come by--just get someone to propose to you--but lonsdaleite's a little trickier to acquire. We get our hands on the stuff only when certain meteorites crash into the Earth.
The only remaining question is, which is harder: Lonsdaleite, or marriage?
via itv news
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