[meteorite-list] NWA 6292 (BRA) IS paired to NWA 5400 !

From: Zelimir Gabelica <Zelimir.Gabelica_at_meteoritecentral.com>
Date: Tue, 28 Sep 2010 22:21:51 +0200
Message-ID: <201009282024.o8SKOhte018758_at_smtpmul2.univ-mulhouse.fr>

Hi Alanj, list,

 From my files, NWA 2999 has quite many pairings.
Here is my general write up for this meteorite
with a compilation of its recognized pairings
(updated 2009 so possibly not complete):
---------------------
NWA 2999 (Morocco, Angrite), found 2004.
Purchased Tagounite (G. Hup?). TKW: 12 at 312 g.
Angrite with plutonic texture as Angra dos Reis.
Mercury origin questioned but not conclusive (Weir).
(Note 1: G. Hup? had all the 12 fragments
analyzed, which is a sign of a serious work)

Paired with NWA 3158 (1 at 681 g), NWA 3164 (48 at 928
g), NWA 4569 (many at 484 g), NWA 4662 (1 at 62 g), NWA
4877 (1 at 1000 g), NWA 4931 (2 at 2140 g) and
NWA 6291 (1 at 250 g). Cumulated tkw: 66++ at 5937 g.
(Note 2. Weir suggests NWA 2836 is also paired
but the Met. Bull database report the type of NWA 2836 as being LL3.7)
----------------------

Best to all,

Zelimir



At 17:45 28/09/2010, Shawn Alan wrote:
>
>Adam wrote:
>
>***********************************************************************************
>
>This issue is not unique to NWA meteorites. The same thing could be said for
>Antarctic or other desert finds. Yes, Antarctica is a desert. The same issue
>applies to falls. How much Allende is really out
>there? Nobody knows for sure,
>the same can be said for Murchison. You can make
>the same claim for just about
>any fall.
>
>***********************************************************************************
>
>Adam the difference between NWAs and all the
>other falls is that NWA nobody knows where the
>strewn fields are. As for the rest, there is
>data on strewn fields and correct documentation
>that is used to asses the fall or find.
>
>But with a NWA I find that people say that only
>buy my NWA because its the real deal and the
>pairs are inferior. The problem with that is
>with NWAs are collected and through out the
>months or year the same meteorite gets recycled
>back to dealers and in a since every NWA stone
>has to be classified cause of the collection process.
>
>Good example is NWA 2999, I think this meteorite
>has 2 other pairings if not more and think how
>many pairs it will have in a few years from now?
>And another good example is NWA 5400 which could
>have a few pairs, which are very likely.
>
>Now when people bank of there NWA as being rare
>cause of low TKW it seems that it this could be
>misleading cause of the circumstances that NWAs
>present to science and they way they are collected.
>
>
>Shawn Alan
>IMCA 1633
>eBaystore
>http://shop.ebay.com/photophlow/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p4340
>
>
>
>
>
>
>
>
>[meteorite-list] NWA 6292 (BRA) IS paired to NWA
>5400 !Adam Hupe raremeteorites at yahoo.com
>Tue Sep 28 09:22:26 EDT 2010
>
>
>Previous message: [meteorite-list] NWA 6292 (BRA) IS paired to NWA 5400 !
>Next message: [meteorite-list] NEW RELEASE - The
>Day the Meteorite Fell in Sylacauga
>Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
>
>
>
>Shawn wrote:
>
>*****************************************************************
>Now the slight problem I have with NWA's is that
>you really don't know how much
>of that stuff is out there. That can work in your favor and against you. So
>lets say you found an NWA and its about 1000g and you get it tested and its a
>new NWN. Now you can say its rare because there is only 1000g, but do you
>really know that for sure? From what I have seen, its not the case, and NWAs
>keep getting paired with each other more time
>then not.... I think that's why I
>tend to stay away from NWA's for that reason and others.
>
>****************************************************************
>
>This issue is not unique to NWA meteorites. The same thing could be said for
>Antarctic or other desert finds. Yes, Antarctica is a desert. The same issue
>applies to falls. How much Allende is really out
>there? Nobody knows for sure,
>the same can be said for Murchison. You can make
>the same claim for just about
>any fall. I have seen collectors financially
>burned on falls many times, myself
>among them. I have lost more value by collecting new falls than I have
>collecting finds. This is why I tend to stay away from new falls. The price
>drops off sharply within a few months once the initial excitement disappears.
>
>
>I lost a small fortune on New Orleans and Claxton by letting the market
>determine the value by putting them up for auction with no reserves.
>
>Happy Hunting, Long live the finds because
>without them we would have no lunar
>meteorites,
>
>Adam
>
>
>
>
>
>Previous message: [meteorite-list] NWA 6292 (BRA) IS paired to NWA 5400 !
>Next message: [meteorite-list] NEW RELEASE - The
>Day the Meteorite Fell in Sylacauga
>Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
>
>
>More information about the Meteorite-list mailing list
>
>
>Hello Greg S and Listers,
>
>Now the slight problem I have with NWA's is that
>you really don't know how much of that stuff is
>out there. That can work in your favor and
>against you. So lets say you found an NWA and
>its about 1000g and you get it tested and its a
>new NWN. Now you can say its rare because there
>is only 1000g, but do you really know that for
>sure? From what I have seen, its not the case,
>and NWAs keep getting paired with each other
>more time then not.... I think that's why I tend
>to stay away from NWA's for that reason and
>others. Plus it seems that every meteorite is
>unique in its own right and some bank off that
>uniqueness and rarity to pump up the price in
>the NWA market. But once more is found, that
>type isn't that rare anymore, so that's why I
>stick with the historic falls, cause that event
>can only happen once and there is a rich history
>and legacy to back up that meteorite.
>
>Also the NWA 5400 is speculated to have a
>connection with Earth. Now in my own opinion if
>this was the find of the century, wouldn't you
>think there would be more research papers
>written about this monumental find that some
>people praise it to be? All I can find are 2
>papers and the second paper doesn't even seem
>that promising. Good example is Almahata Sitta.
>That meteorite has been around since NWA 5400
>and there is so much information and papers upon
>papers about this meteorite, and the research
>hasn't stop, but for the NWA 5400, its is a
>trickle, 2 papers whats up with that? Again, the
>evidence isnt there and a swashy thought out
>theory, which other theories have been brough up
>about the NWA 5400 and where it came from, more evidence please.
>
>But at the end of the day people have their
>reasons why they collect and some are drawn to
>classifications and others to historic falls.
>The good thing for any collector is to do
>research and learn what they are going to buy
>before they buy it. Also they learn alot more
>about meteorites in the process and gain a since
>of understanding of where meteorites came to be.
>
>If any one has the time, check out this link
>below, its a great paper written by Ursula B.
>Marvin, explaining the beginning of meteorites
>from a historical and scientific perspective.
>
>http://adsabs.harvard.edu/full/1996M%26PS...31..545M
>
>Shawn Alan
>
>IMCA 1633
>eBaystore
>http://shop.ebay.com/photophlow/m.html?_nkw=&_armrs=1&_from=&_ipg=&_trksid=p4340
>
>
>
>
>
>
>
>
>[meteorite-list] NWA 6292 (BRA) IS paired to NWA
>5400 !Thunder Stone stanleygregr at hotmail.com
>Mon Sep 27 18:48:32 EDT 2010
>
>
>Previous message: [meteorite-list] NWA 6292 (BRA) IS paired to NWA 5400 !
>Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
>
>
>Wow - this is making my head spin. It is my
>understanding that the O isotope data is
>necessary to show the relationship to the early
>earth-type rocks; it has to fall on the TFL. I
>would think this is necessary to prove a
>"pairing" to NWA 5400. Until then, it is not
>100% certain. The fact that NWA 6292 IS paired
>to 5400 suggests that there could be more of this unique meteorite out there.
>
>Just my thoughts,
>
>Greg S.
>
>----------------------------------------
>
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Prof. Zelimir Gabelica
Universit? de Haute Alsace
ENSCMu, Lab. GSEC,
3, Rue A. Werner,
F-68093 Mulhouse Cedex, France
Tel: +33 (0)3 89 33 68 94
Fax: +33 (0)3 89 33 68 15
Received on Tue 28 Sep 2010 04:21:51 PM PDT