Hi John, Tom and list John, would a inert invironment help sabilize this oxidation? Like vacuum sealing them in a food storage bag like whats advertised on the tv? Or, for a more pleasing display, one of the little globes used for opal with the large rubber stopper back filled with helium (helium is easy to get from local stores which they fill ballons with is why I mention it). I'm always wondering about long term storage because, as you know, once something starts oxidizing, it often does so very quickly. Mark
--- John Divelbiss <[EMAIL PROTECTED]> wrote: > Tom, > > First off, many of R pieces from the desert are > oxidized a bit. > > According to "Rocks from Space", these meteorites > have very little free > metal "floating around" in the makeup. Like normal > chondrites with nickel > iron. The metal is in the sulfide forms of > pyrrhotite and pentlandite. The > iron level in the olivine is the highest among > chondrites. > > All that gives this type of meteorite a higher > rate/chance of oxidation than > others. > > Hope this helps, > > John > ----- Original Message ----- > From: "Tom aka James Knudson" > <[EMAIL PROTECTED]> > To: "meteorite-list" > <[EMAIL PROTECTED]> > Sent: Tuesday, February 11, 2003 6:58 PM > Subject: [meteorite-list] NWA 753 > > > > Hello List, I have a slice of NWA 753. It has some > rust colored spots > > through out the matrix. What Am I looking at? If > it is rust, what rusted? > > Thanks, Tom > > The proudest member of the IMCA 6168 > > > > > > > > ______________________________________________ > > Meteorite-list mailing list > > [EMAIL PROTECTED] > > > http://www.pairlist.net/mailman/listinfo/meteorite-list > > > > > ______________________________________________ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list __________________________________________________ Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day http://shopping.yahoo.com ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
