Space Diamonds are Even Harder Than Earth Diamonds - by ET_Exists
“This study proves categorically that lonsdaleite exists in nature,” said McCulloch. “We have also discovered the largest lonsdaleite crystals known to date that are up to a micron in size – much, much thinner than a human hair.”
For the study, the research team studied snapshot slices of the meteorites containing lonsdaleite and regular diamonds to see how each formed. Professor Andy Tomkins of Monash University, and lead author of the study, said the researchers propose the meteorites containing lonsdaleite formed form what’s known as aat both moderate pressures and high temperatures, which resulted in near perfect preservation of the textures and shape of the pre-existing graphite.
France Dernières Nouvelles, France Actualités
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