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Chinese scientists synthesize rare meteorite hexagonal diamonds 60% harder than cubic ones found on Earth, through previously elusive process
This is the first time these kinds of diamonds have been made synthetically under laboratory conditions, putting an end to 60-year debate.
But there is a rarer form, the hexagonal diamond (atoms stacked in a honeycomb-like pattern), that seems to originate when meteorites smash into Earth, producing extreme heat and pressure. The very first hexagonal-structured diamond was found within the ‘Diablo Canyon’ meteorite which is believed to have hit the Earth about 50,000 years ago and landed in what is present-day Arizona. “This synthesized hexagonal diamond is expected to pave new pathways for the development of superhard materials and high-end electronic devices,” stated Ho-kwang Mao from the Chinese Academy of Sciences.
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