Bob I've bought a couple of kilos of unclassifed NWAs to use as giveaways and to practice cleaning up, cutting and polishing. I have noticed that quite a substantial proportion of the ones I've opened up DO have weathered interiors and fine shock veins. As a guess I'd say 20-30%. I'd need to check to be more accurate than that. I realise I'm only looking at a small sample and am describing the interiors of less than 50 small individual rocks but I can assure you it does occur. It depends on how representative my samples are and the quantitative definition of "many" vs "few".
Regards Rob --- "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > Hi Martin, > Thanks for your observations on Dhofar vs. NWA. What > you wrote makes sense. > However I still wonder why many of the Dhofar > chondrites have so many fine > shock > veins compared to the NWAs. Any thoughts? > Bob > > > Original Message: > ----------------- > From: Martin Altmann [EMAIL PROTECTED] > Date: Thu, 8 Jun 2006 14:36:29 +0200 > To: [email protected], > [EMAIL PROTECTED] > Subject: AW: [meteorite-list] Dhofar vs. NWA > meteorites > > > Hi Bob, > > >So we have two reasons: > The more harsh weathering conditions in Oman > and a economical one, that from the NWA one sees > only the tip of the > iceberg's weathering scale, cause the more rotten > stuff doesn't sell. > > Buckleboo! > Martin > > > - > Hi all, > I've seen a good number of Dhofar and NWA common > chondrites and > I've noticed that there are many among the Dhofars > which exhibit highly > weathered interiors laced with rich, thread-like > shock veins. These > veins seem to be far less common in NWA chondrites > and I wonder > why. Can anyone shed light on this little mystery > (for me)? Thank you! > Bob > ______________________________________________ > 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 > > -------------------------------------------------------------------- > mail2web - Check your email from the web at > http://mail2web.com/ . > > > ______________________________________________ > Meteorite-list mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/meteorite-list > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
