Dear Adam and List Members, I can quite believe that the main mass of this meteorite is weighing over 2.5 kg (If it’s the case, I ask to everybody to excuse me for the title of my first message) but I have never heard about this piece and nobody has shown a picture of it.
I know, of course, that this meteorite (Oum Dreyga/Amgala) is already being studied at NAU, but as it often arrives, this meteorite will be analysed by several laboratories. I think that this is a good thing and that the comparison of different studies is always rich in learnings. It’s sure that it is an H chondrite, the exact type will be determinated by the analyses. I can’t believe that a professionnal can confuse a L chondrite with a H chondrite and a weathering grade 2 with a weathering grade 0. There is a lot of swindles in this stuff, and perhaps the ill-intentioned people would like to sell Zag pieces for pieces of the new fall. But again, it’s seems to me really improbable to confuse them. Zag meteorite looks really special and is recognizable at the first glance. Even the pieces recovered three or four years ago don’t have the sight of a meteorite which is on Earth since few months. The one who has had the fortune to handle some meteorites which fell on Earth few times ago, known the « mint » appearance of them. This appearance can’t be confused with the ones which had been exposed to weathering for some times. I have had the occasion to handle a nice piece of Ben Sour recovered 15 months after the fall. This piece was already affected by the desert varnish. Best Regards, Philippe > Dear Phillip and List, > > The main mass is larger than 2.5 kilograms and Amgala is currently being > studied at NAU which should release results soon. Three different type > specimens have been submitted and it looks like it will classify as an > H3.8 > rare Polymict Breccia with exotic clasts. Be careful about find > location as > we reported the strewn field was between Amgala and Oum Dreyga the very > first post we made on the subject. An unrelated L5, W2 black > chondrite find > was being mixed in at first skewing the strewn field results. Also > some Zag > is reappearing and being sold as Amgala confusing the issue even more if > that is possible. After looking at several pieces of Amgala and Zag > it is > easy to tell them apart. Zag has some extremely dark lithologies, the > crust > is different and is a regolith breccia. > > Hope this helps clear up some confusion, > > The Hupe Collection > > > > ----- Original Message ----- > From: "philippe thomas" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, April 15, 2004 11:46 AM > Subject: [meteorite-list] Main mass of Oum Dreyga (Amgala) recovered ! > > > Dear List Members, > > Our team has recovered from a soldier from Western Sahara an amazing > oriented stone with > flow lines (99% crusted) weighing a little bit more of one kilo. This > stone > seems to be the > main mass of this fall. > Michèle Bourot-Denise, from the MNHN of Paris) is actually analysing a > sample of this fall > but it appears clearly that this is an ordinary H chondrite. > > Some dealers are using as provisional name for this fall « Amgala », > but the > strewnfield is > closer to Oum Dreyga. Amgala is 250km far away. > > You can see this piece of Oum Dreyga in my website www.meteoritica.com > > Best Wishes > Philippe Thomas > > ______________________________________________ > 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
