Interstellar diamonds in meteorites

Details Interstellar diamonds in meteorites Interstellar diamonds in meteorites

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987natur.326..160l&link_type=abstract

Nature (ISSN 0028-0836), vol. 326, March 12, 1987, p. 160-162. NASA-supported research.

Computer Science

353

Carbonaceous Chondrites, Cosmic Dust, Cosmochemistry, Interstellar Matter, Meteoritic Diamonds, Chemical Composition, Electron Diffraction, Electron Microscopy, Mechanical Shock, Meteorites, Diamonds, Abundance, Carbon, Source, Origin, Isotopes, Sem, Anomalies, Krypton, Xenon, Nitrogen, Enrichment, Depletion, Chondrites, Formation, Condensation, Samples, Meteorite, Tem, Electron Microscopy, Cv3 Chondrites, Allende, Cm2 Chondrites, Murchison, Murray, Indarch, E4 Chondrites, Procedure, Analysis, Tem, Laborato

Scientific paper

Primitive meteorites contain up to 400 p.p.m. of a very fine-grained type of carbon, noncommittally called Cδ. It apparently comes from outside the solar system, as it carries isotopically anomalous krypton and xenon and nitrogen, although the carbon itself is within the terrestrial range. Here the authors present evidence that part or all of Cδ is diamond - not shock-produced but primary, formed by stellar condensation as a metastable phase. It appears that interstellar dust contains diamond.

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