Marcin wrote: > I have in my collection small piece of Orgueil. > ... under my microscope (binocular), ... I saw > something ... growing on it !! Small, white > crystals like snow or something. What is it?
Hello Marcin and List, You were probably looking at some sulfate crystals. Reference: GOUNELLE M. et al. (2001) A terrestrial origin for sulfate veins in CI1 chondrites (MAPS 36-10, 20001, 1321-1329): White sulfate veins are a very well-known petrological feature of the chemically primitive CI1 carbonaceous chondrites. Sulfate veins were first described in the Orgueil meteorite in 1961, almost one century after ist fall ... We suggest that all CI1 sulfate veins formed during terrrestrial residence of these heavily brecciated, porous stones. Best wishes, Bernd P.S.: See also the beautiful cover photo (in color) in MAPS 36-10, which shows these sulfate veins on Orgeuil! ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
