Hexagonal Diamonds in Meteorites: Implications

doi:10.1126/science.155.3765.995

Hexagonal Diamonds in Meteorites: Implications

1967-02-24

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DOI：10.1126/science.155.3765.995

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A new polymorph of carbon, hexagonal diamond, has been discovered in the Canyon Diablo and Goalpara meteorites. This phase had been synthesized recently under specific high-pressure conditions in the laboratory. Our results provide strong evidence that diamonds found in these meteorites were produced by intense shock pressures acting on crystalline graphite inclusions present within the meteorite before impact, rather than by disintegration of larger, statically grown diamonds, as some theories propose.

Hexagonal Diamonds in Meteorites: Implications

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