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Mineral physicists have confirmed the structure of cold-compressed graphite, a form of carbon so hard it can damage its cousin—diamond.

“Our study shows that M-carbon is extremely incompressible and hard, rivaling the extreme properties of diamond so much that it damages diamond,” says Yale University Kanani K.M. Lee.

Above at left, the diamond anvil before, and at right, severely damaged after high-pressure experiments with M-carbon.

Full story at Futurity.

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Photo credit: Michael Helfenbein, Yale University