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

From: Adam Hupe <raremeteorites_at_meteoritecentral.com>
Date: Tue, 28 Sep 2010 09:16:37 -0700 (PDT)
Message-ID: <766805.37005.qm_at_web30706.mail.mud.yahoo.com>

Pairings are found throughout, regardless if found or witnessed. It is just that
falls require much less scrutiny since the find location is enough to make a
pairing conclusion. The pairings are very rarely recorded for a fall after the
initial entry in the bulletin. NWAs on the other hand, require much more study
to determine pairings. The find locations are known for most NWA meteorites,
same for any other area of mass concentrations. The Nomads and hunters go back
to these same locations time and time again. Sometimes the shifting sands
reveal more material. Same for dry lake beds and Antarctic finds. They are
named the same way as NWAs regardless whether coordinates are given or not.
They are all given serial numbers following the nomenclature.

It doesn't make one rarer than the other. It could be argued that a lot of
pairings are lost with time making the TKW for finds less than that of falls.
It cannot be concluded that one is rarer than the other due to nomenclature
alone.

The TKWs given for falls are way off unless they came in as a single stone. One
just needs to look at Park Forest where the weights were recorded in the
Meteoritical Bulletin before the main mass and many others were found.

Best Regards,

Adam





----- Original Message ----
From: Shawn Alan <photophlow at yahoo.com>
To: meteorite-list at meteoritecentral.com
Sent: Tue, September 28, 2010 8:45:40 AM
Subject: [meteorite-list] NWA 6292 (BRA) IS paired to NWA 5400 !

 
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


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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





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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


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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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Received on Tue 28 Sep 2010 12:16:37 PM PDT