Hello Bernd and list. I am just curious about CR's because I read something about them having metal inside the chondrules. I was wondering if CR's were the only meteorite with this feature. I am not implying my meteorite is a CR, but I had thought it was weird because the white inclusions were full of metal. Is this common for inclusions? Would the metal get inside an inclusion the same way it would a chondrule? (see link if you don't remember the meteorite)
http://www.geocities.com/alosthawker/MVC-032S.JPG Thanks, Tom peregrineflier <>< IMCA 6168 http://www.frontiernet.net/~peregrineflier/Peregrineflier.htm ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, November 24, 2004 12:19 PM Subject: [meteorite-list] CR Chondrites > Hello Tom and List, > > I've told you at least once before and I am telling you once again: > Please, stop imparting a feeling of inferiority to yourself and don't > keep telling the world that you are what you call "stupid". Just think > of your falcons - they are proud, majestic creatures even though they > don't know anything about meteorites. Ignorance is one thing, stupidity > another and it has many different facets as we all know so well ;-) > > As for CR meteorites, here is a slightly shortened version from NORTON O.R. > (1998) Rocks From Space II, p. 195: "CR chondrites ... contain about 10 % by > weight iron-nickel metal and iron sulfide. The metal content is the most easily > distinguished characteristic. The metal is found in the fine-grained matrix and > as inclusions in the chondrules. Roughly 50 percent of the meteorite is relatively > large chondrules (0.027-inch average diameter) and chondrule fragments." > > O.R. Norton's descriptive explanation is not *too* technical and good enough > as a first approach. I would only add that more often than not CR chondrules > are surrounded by a metallic rim, in other words they are armored. One might > also add that, although they do not look "carbonaceous" at first sight, they > are considered members of this group because their compositions are similar > to those of the carbonaceous chondrites. > > Best wishes, > > Bernd (still in love with his gorgeous, cut 7.23-gram CR2 > crusted endpiece purchased from Dean in May of 2003) > > ______________________________________________ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://six.pairlist.net/mailman/listinfo/meteorite-list > ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
