Sequential Lonsdaleite to Diamond Formation in Ureilite Meteorites via In Situ Chemical Fluid/Vapor Deposition
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2208814119
Abstract: Significance We report on lonsdaleite and diamond formation in ureilite meteorites, which likely come from the mantle of a destroyed inner solar system dwarf planet. In these meteorites, folded graphite crystals have been pseudomorphed by… read more here.
Keywords: formation ureilite; diamond formation; lonsdaleite diamond; vapor deposition ... See more keywords
Questionable lonsdaleite identification in ureilite meteorites
Sign Up to like & getrecommendations! Published in 2023 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2304890120
Abstract: Lonsdaleite is the mineral name given to the hexagonal dia - mond component in the hard carbon grains from the Canyon Diablo iron meteorite (1). Although natural and synthetic materials with diffraction data matching the… read more here.
Keywords: lonsdaleite identification; canyon diablo; identification ureilite; questionable lonsdaleite ... See more keywords