[meteorite-list] E chondrites - Ad
From: rockhoundm_at_abaconet.com.ar <rockhoundm_at_meteoritecentral.com>
Date: Thu Apr 22 10:02:25 2004 Message-ID: <B0012740218_at_petrona.abaconet.com.ar> Hi A couple of our actual ebay auctions are EH3 paired with SAH97096 so it's an excellent oportunity to invite you to see our auctions: cgi6.ebay.com/aw-cgi/eBayISAPI.dll?ViewListedItems&userid=meteorites.com or just look for user id: meteorites.com If you want to see the EH3, the ebay auctions are # 1080058932 and 1080060030 This time we are offering a nice end-piece of EL KACHLA (L-IMB), an amazing slice of LL3 NWA 872, Chassigny (small cheap tiny Micros), Oriented irons and stonys (Sikote, Gao, Juancheng), a CV3 (Sah98044) Brenham, rares HaH (a Winnonaite and a Bencubbinite), a 65+g Allende individual with great fusion crust and much much more. www.meteorites.com IMCA # 0645 -----Original Message----- From: LABENNE METEORITES <metlabo1_at_worldnet.fr> To: Bernd Pauli HD <bernd.pauli_at_lehrer1.rz.uni-karlsruhe.de>, MuseumStore/NatureSource <musnat_at_alaska.net> Date: Mon, 04 Mar 2002 23:05:14 +0100 Subject: Re: [meteorite-list] E chondrites > Hi, > > We have found a very nice EH3 in 1997, the meteorite SAH97096, and > its > pairing group, see our web page at > http://www.labenne-meteorites.com/97096.htm . It can be classified > among > the most primitive enstatite chondrite comparable to Qingzhen and > Parsa. It > contains olivine chondrules and types II chondrules fragments. This > meteorite has been described as a highly primitive EH3 chondrite that > has > retained primary accretional nebular features in the form of > sulfide-metal > rich chondrules. The main mass SAH97091, EH3 is a single stone found in > 1997, weighing 6140g. > To learn more about this EH3, perhaps the most primitive EH3 chondrite > : > **SAH97096. A highly primitive EH3 chondrite with layered > sulfide-metal-rich chondrules. M.K.Weisberg and > M.Prinz.http://www.lpi.usra.edu/meetings/LPSC98/pdf/1741.pdf > **Unusually abundant refractory inclusions and iron oxyde-rich > silicates in > an EH3 chondrite, SAH97159 (paired with the SAH97096 and > SAH97158http://www.lpi.usra.edu/meetings/metsoc2000/pdf/5101.pdf > **In situ analysis of the iodine-xenon system in a Saharan EH3 > chondrite. > J.A.Whitby, J.DGilmour, and G.Turner. > **Bourot-Denise, M.; Perron, C. Shock-induced Transformations in an EH3 > Chondrite. > > > At 10:08 PM 3/4/02 +0100, Bernd Pauli HD wrote: > >Jeannie wrote: > > > > > I had someone ask me about a meteorite that perhaps > > > originated from Mercury, or the orbit of Mercury... > > > > > >Hi Jeannie and List, > > > >Although O.R. Norton's wonderful new book on meteorites is > >to be released in North America on April 1, there is still a lot of > >invaluable information in RFS I and II - but who am I telling that :-) > > > >NORTON O.R. (1998) Rocks From Space, p. 190, E-Chondrites: > > > >E-chondrites are rare, representing less than 2 % of the stony > >meteorites, and only twenty-four(*) are known. They must have > >formed in an oxygen -depleted environment, since most of their > >iron occurs either as metal or in combination with sulfur, forming > >the iron-sulfide mineral troilite. > >In ordinary chondrites, pyroxene contains both magnesium and > >iron in a ratio depending on the availability of oxygen. Not so the > >E-chondrites. Their pyroxene contains no iron, only magnesium. > >This almost pure magnesium silicate pyroxene is called enstatite, > >and accounts for about 65 percent of the mineral content of these > >meteorites. Thus, they are called enstatite chondrites, or > E-chondrites. > >It's not surprising to see a fayalite content of less than 1 %. Like > the > >ordinary chondrites, E-chondrites are subclassified into H and L types > >depending on total iron. EH-chondrites have more total iron (about 30 > >percent) and more metal. EL-chondrites have less total iron (about 25 > >percent) and less metal. > >Their low oxygen content suggests that they formed even closer > >to the Sun than the H-chondrites, possibly inside Mercury's orbit. > > > > > >Best wishes, > > > >Bernd > > > >(*) Meanwhile, four years later there are: > > > >088 Non-Antarctic E chondrites in my databases > > (not included are the recent Hot Desert Finds) > >210 US-Antarctic E chondrites > >035 Jap-Antarctic E chondrites (incomplete data records) > > > >As usual, this statistical obverview does not take into > >consideration the (tentatively) paired specimens. > > > > > >Best regards, > > > >Bernd > > > >______________________________________________ > >Meteorite-list mailing list > >Meteorite-list_at_meteoritecentral.com > >http://www.pairlist.net/mailman/listinfo/meteorite-list > > Meteoriticaly Yours, > > Marc, Luc & Jim Labenne. > > Meteorites for Science, Education and Collectors > > LABENNE METEORITES > BP 57 > 02700 TERGNIER > FRANCE > Tel/Fax(rep):33 323 575 133 > > E-mail: metlabo1_at_worldnet.fr > <http://www.labenne-meteorites.com> > > > ______________________________________________ > Meteorite-list mailing list > Meteorite-list_at_meteoritecentral.com > http://www.pairlist.net/mailman/listinfo/meteorite-list Received on Mon 04 Mar 2002 06:06:12 PM PST |
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