Hello David, Adam, and List, I'm sorry for my late response but we are very busy with our preparations for our family trip to Lake Constance tomorrow.
David Weir kindly wrote: > Perhaps Bernd could check his > extensive resources for more info So here goes: HILL H.G.M. et al. (1997) Infrared spectroscopy of interstellar nanodiamonds from the Orgueil meteorite (Meteoritics 32-5, 1997, 713-718, excerpts): "To date, the only diamonds identified that are almost certainly of extrasolar origin are those that survive in the matrices of primitive meteorites (Lewis et al., 1987; Anders and Zinner, 1993; Ott, 1993). Typically 1-3 nm in size (1 nanometer = one billionth of a meter), they are present in abundances of up to ca. 1400 ppm ... Meteoritic nanodiamonds, with typical dimensions in the range of 1-3 nm, are significantly smaller than the diamonds in diamond powders". Best wishes, Bernd ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
