What is the Hardest Substance on Earth?
Lonsdaleite. It is 58 percent harder than diamond.
Lonsdaleite, also called Hexagonal Diamond, is an allotrope of carbon with a hexagonal lattice. In nature, it forms when meteorites containing graphite strike the Earth.
References:
1. New Scientist Live https://www.newscientist.com/article/dn16610-diamond-no-longer-natures-hardest-material/
2. Wikipedia https://en.wikipedia.org/wiki/Lonsdaleite
Lonsdaleite. It is 58 percent harder than diamond.
Lonsdaleite, also called Hexagonal Diamond, is an allotrope of carbon with a hexagonal lattice. In nature, it forms when meteorites containing graphite strike the Earth.
References:
1. New Scientist Live https://www.newscientist.com/article/dn16610-diamond-no-longer-natures-hardest-material/
2. Wikipedia https://en.wikipedia.org/wiki/Lonsdaleite
