Scientists Say These Mysterious Diamonds Came From Outer Space

Scientists from Monash University, RMIT University, CSIRO, the Australian Synchrotron, and Plymouth University found evidence of how lonsdaleite formed in ureilite meteorites from the mantle of a dwarf planet. The unusual structure of the rare hexagonal diamond could help inform new manufacturing techniques for ultra-hard materials in mining applications. Researchers published their findings on September 12 in the Proceedings of the National Academy of Sciences (PAS) in the PAS. The study found that the diamonds formed shortly after the dwarf planet collided with a large asteroid about 4.5 billion years ago.

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