[meteorite-list] Large Angrite Slices - NWA 4931 - AD

From: M come Meteorite <info_at_meteoritecentral.com>
Date: Wed, 18 Aug 2010 20:11:45 +0200
Message-ID: <L7D17L$B774D32CE9046E01E615FA469A65AA2B_at_aruba.it>

fantastic, another meteorite price ruined, from the $1000 of the d'Orbigny to $75/gr. of this. Happy who have pay $1000/gr. for have a angrite piece....

Matteo

 
M come Meteorite Meteoriti
info at mcomemeteorite.it
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Da: meteorite-list-bounces at meteoritecentral.com
A: meteorite-list at meteoritecentral.com
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Data: Wed, 18 Aug 2010 12:04:34 -0400
Oggetto: [meteorite-list] Large Angrite Slices - NWA 4931 - AD


> Dear List Members,
>
> GregC. wrote yesterday, "Will any of you match that price [$100.00/g] on
> your angrites?" My answer is "Yes, and I will beat it!" Here is an Ad I ran
> September 22, 2009 where I offered NWA 4931, the Main Mass of the now famous
> NWA 2999 Angrite pairings where I offered specimens at just $75.00/g. I have
> only nine specimens left so if you want the "Original Good Deal", send me an
> email off List. Here is my original emails below with the specimen list for
> your consideration:
>
> [September 22, 2009]:
> About a week ago I announced NWA 4931, the angrite that was flown to MIT in
> 2007 where a core sample was taken for magnetism analysis. I was able to get
> large slices cut from the largest mass after the coring was completed. It
> was cut and polished by one of the best professionals out there! I would
> like to offer what I have available at discounted prices. Here is the list
> with photo links (measurements are in millimeters). The description of NWA
> 4931 is below the list in this email.
>
> ***Last Nine Available specimens of angrite NWA 4931***
>
> 685g Fragment (no coring was done on this piece).
> 110mm x 90mm x 40mm
> http://www.lunarrock.com/nwa4931/dsc00001.jpg
>
> 302g end cut
> 100 x 70 x 32
> http://www.lunarrock.com/nwa4931/dsc00003.jpg
>
> 32.2g part slice
> 67 x 49 x 3.5
> http://www.lunarrock.com/nwa4931/dsc00008.jpg
>
> 29.8g part slice
> 68 x 53 x 3
> http://www.lunarrock.com/nwa4931/dsc00009.jpg
>
> 23.3g part slice
> 64 x 45 x 3
> http://www.lunarrock.com/nwa4931/dsc00010.jpg
>
> 22.7g part slice
> 62 x 43 x 3
> http://www.lunarrock.com/nwa4931/dsc00011.jpg
>
> 22.4g part slice (has part of core hole along back edge).
> 62 x 40 x 3
> http://www.lunarrock.com/nwa4931/dsc00012.jpg
>
> 17.2g part slice (has part of core hole along back edge).
> 58 x 40 x 3
> http://www.lunarrock.com/nwa4931/dsc00014.jpg
>
> 14.8g part slice
> 68 x 23 x 3.5
> http://www.lunarrock.com/nwa4931/dsc00016.jpg
>
> I have priced these at $75.00 per gram for the polished slices and can offer
> further discounts on the large fragment and end cut. If you are interested
> in any of these specimens, please email me Off-List. Thank you for
> considering these beautiful angrite specimens!
>
> Here is my description of NWA 4931 with photo links of the coring and
> overall meteorite:
>
> Start>>
> NWA 4931, the Main Mass to the now famous angrite, NWA 2999. NWA 4931 has a
> Total Known Weight (TKW) of 2140 grams in two interlocking fragments, which
> form a complete stone. Surprisingly, the two parts were recovered by nomads
> months apart in the Sahara Desert in 2007. The first 1314-gram half was
> flown to Massachusetts Institute of Technology in Boston where scientists
> extracted a core sample in order to conduct magnetism tests, which they
> hoped would provide vital evidence indicating the size of the Angrite Parent
> Body (APB).
>
> Image of 1314-gram stone representing 60% of entire mass (cube: 1-inch
> square):
> http://www.lunarrock.com/nwa4931/nwa4931complete1.jpg
>
> Link to image of core sampling at MIT laboratory:
> http://www.lunarrock.com/nwa4931/nwa4931core.jpg
>
> Image of 66-gram complete slice displaying abundant xenocrysts:
> http://www.lunarrock.com/nwa4931/nwa4931slice.jpg
>
> An international consortium of scientists, led by Dr. Benjamin Weiss of MIT,
> took a new approach to the problem by testing samples from several angrites
> with an extremely sensitive magnetometer. They discovered the material
> showed evidence of ancient magnetic fields similar to those of rocks formed
> on Earth within the planet's magnetic field. In other words, as the team
> reported in the October 31, 2008 issue of Science, these 4.56
> billion-year-old meteorites once were part of bodies that were either big
> enough or hot enough to produce central, molten, metallic cores.
>
> Link to LPSC abstract on magnetic field on Angrite Parent Body:
> http://www.lpi.usra.edu/meetings/lpsc2008/pdf/2143.pdf
>
> "The meteorites, therefore, are essentially magnetic recording tapes," says
> Weiss. The magnetic fields that they recorded were probably generated by
> molten metal swirling around inside the planet's core like a giant, rotating
> dynamo, as happens on Earth. Angrites are among the oldest known pristine
> basaltic meteorites ever found and have provided new clues about the
> conditions that existed at the beginning of the solar system, solving a
> longstanding mystery and overturning some accepted ideas about the way
> planets form. They still contain magnetic records about the earliest stages
> of planet formation and differentiation.
>
> ScienceNOW Daily News: October 30, 2008:
> http://sciencenow.sciencemag.org/cgi/content/full/2008/1030/2
>
> Science October 31, 2008:
> http://www.sciencemag.org/cgi/content/abstract/322/5902/713
>
> Link to abstract reporting ages of angrites NWA 2999, NWA 4801 and NWA 4590
> "Tamassint":
> http://www.lpi.usra.edu/meetings/metchron2007/pdf/4061.pdf
>
> BSE image of corona textures in NWA 4931.
> http://www.lunarrock.com/nwa4931/nwa4931bse.jpg
> End<<
>
> Best regards,
> Greg
>
> ====================
> Greg Hupe
> The Hupe Collection
> NaturesVault (eBay)
> gmhupe at htn.net
> www.LunarRock.com
> IMCA 3163
> ====================
> Click here for my current eBay auctions:
> http://search.ebay.com/_W0QQsassZnaturesvault
>
> ----- Original Message -----
> From: "Greg Hupe"
> To:
> Sent: Tuesday, September 22, 2009 2:07 PM
> Subject: [meteorite-list] Large Angrite Slices - NWA 4931 - AD
>
>
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Received on Wed 18 Aug 2010 02:11:45 PM PDT