Materials geekery: The hardest substance on Earth - Core77
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?
Ha.
