Crushing Diamonds With Forces Greater Than Earth’s Core Reveals They Are ‘Metastable’ – ScienceAlert

Diamonds can handle a little pressure. Actually, revise that – diamonds can handle a lot of pressure. In a series of new experiments, scientists have found that diamonds retain their crystal structure at pressures five times higher than that of Earth’s core.
This contradicts predictions that diamond should transform into an even more stable structure under extremely high pressure, suggesting that diamond sticks to a form under conditions where another structure would be more stable, what is referred…

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