Lonsdaleite

Lonsdaleite is also known as hexagonal diamond because of its crystal structure, It is a allotrope of carbon with a Hexagonal lattice as compared to the cubical lattice of regular diamonds.

It is naturally found in meteorite debris of meteors that carried graphite and crashed onto earth, the great heat and pressure upon impact made the graphite turn into Lonsdaleite.

Lonsdaleite Media

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  Diamond samples from the Popigai impact structure: (a) is pure diamond, while (b) is diamond with some lonsdaleite impurities.