April 19, 2002
Greetings Jay Haynes, Bernd, and Fellow Meteorite Enthusiasts! I have two possibilities to share on this interesting mystery: 1. Perhaps Jay's piece of Allende is "clastic" and the strange inclusions are in a sense not that of Allende, but are in a clast or his whole sample is a clast. "Zenolithic" I think is the term. 2. Then again, perhaps the strange inclusions are Allende material and really are metallic --- free copper is the phrase. Some meteorites, such as Garnett, Kansas is said to contain such grains which I would like to discuss in rigorous detail some time in the future when time permits. I should mention that I have never heard (at least I don't exactly recall) of free copper in a carbonaceous chondrite. Long strewn fields! Mark Fox Newaygo, MI USA --- Bernd Pauli HD <[EMAIL PROTECTED]> wrote: > Jay Haynes wrote: > > > From the looks of the inclusion it is a sulfide > (brass colored > > about 1mm in length and half a mm in width). I am > 100% sure > > it is a slice of Allende as I just got it from > [...] Looking over > > the slice I see many more brass colored metal > flakes in it but > > much smaller as well as some ordinary metallic > flake in the > > matrix as well as from the looks of it (not too > sure at this > > moment) also in the chondrules. > > > Hello Jay and List, > > This description still leaves me a little puzzled as > there should > not be anything like metal flakes and mm-sized > brassy inclusions. > I've been looking at my six Allende slices (the > largest having a > diameter of more than 2 inches) but the only > features I could detect > that somewhat resemble your description are > orange-colored "specks" > and a look at figure 6.6 (an Axtell specimen in full > color!) in O.R. > Norton's CEM (p. 107) says: "Weathering of the > meteorite has altered > some of the chondrules turning them an o r a n g e > color". There > should be so many Allende slices in our collections > that it would be > interesting to hear more about what Jay observed > from other list > members! > > Best regs, > > Bernd > > ______________________________________________ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list __________________________________________________ Do You Yahoo!? Yahoo! Tax Center - online filing with TurboTax http://taxes.yahoo.com/ ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
