[meteorite-list] NWA 5400 - Last Specimens Available - AD

From: Greg Hupe <gmhupe_at_meteoritecentral.com>
Date: Mon, 26 Jul 2010 13:18:45 -0400
Message-ID: <58EE127D8C734102AF4C5B51AB70E01C_at_greg323a964987>

Dear List Members,

After returning home for some much needed R&R over the last couple months, I
would like to send an update of what is available of NWA 5400. After the
original 4.818kg single stone was partially cut and proper type samples were
provided to a team of dedicated, knowledgeable and professional scientists,
only 978.2 grams of polished slices and fragments were made available to
collectors, along with the 3.426kg Main Mass. Since my first announcing "NWA
5400 - Earth-Related Meteorite" two months ago, I have placed a majority of
NWA 5400 in public and private collections, including the Main Mass. This
leaves far less material of NWA 5400 available to collectors and museums. I
am again considering reasonable offers on the remainder of available
specimens of NWA 5400. I will be able to reply and ship accepted offers
through mid-Friday, July 30th, just four days from now. I can reply to
emails via iPhone after that date but can not ship until I return home by
August 9th or 16th. In the words of the classifying scientist just today,
"...NWA 5400 is the only "certified" material (well-studied, official, 2
abstracts)[oxygen isotope analysis performed]".

NWA 5400: Available Specimens (Updated 7-26-2010):

95.8g cs 148mm x 97mm x 3mm
http://www.lunarrock.com/NWA5400/dsc00001.jpg
75.3g cs 149mm x 95mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00002.jpg
69.2g cs 142mm x 93mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00003.jpg
65.5g cs 129mm x 86mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00004.jpg
59.5g cs 137mm x 88mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00005.jpg
58.9g cs 139mm x 90mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00006.jpg
50.7g cs 124mm x 81mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00007.jpg
46.9g cs 113mm x 73mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00008.jpg
42.9g cs 108mm x 71mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00010.jpg
34.8g cs 104mm x 68mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00011.jpg
29.5g csw 100mm x 72mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00012.jpg
38.9g polished fragment 36mm x 21mm x 32mm
http://www.lunarrock.com/NWA5400/dsc00013.jpg
8.8g ps 35mm x 33mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00014.jpg
7.9g ps 36mm x 34mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00015.jpg
6g ps 44mm x 28mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00017.jpg
5.4g ps 34mm x 23mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00018.jpg
1.9g ps 27mm x 15mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00022.jpg
1.8g ps 26mm x 13mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00024.jpg
1.082g ps 14mm x 9mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00025.jpg
988mg ps 17mm x 6mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00027.jpg
740mg ps 15mm x 10mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00029.jpg
686mg ps 15mm x 6mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00030.jpg
362mg 7mm x 6mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00035.jpg
354mg ps 9mm x 6mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00036.jpg
344mg ps 12mm x 5mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00037.jpg
340mg ps 10mm x 5mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00038.jpg
318mg ps 12mm x 5mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00039.jpg
2.156g cut fragment 18mm x 13mm x 7mm (not polished, good for thin sections)
http://www.lunarrock.com/NWA5400/dsc00042.jpg
2.062g cut fragment 22mm x 9mm x 6mm (not polished, good for thin sections)
http://www.lunarrock.com/NWA5400/dsc00043.jpg
1.284g fragment 18mm x 10mm x 4mm
http://www.lunarrock.com/NWA5400/dsc00044.jpg
1.134g cut fragment 19mm x 8mm x 5mm (not polished, good for thin sections)
http://www.lunarrock.com/NWA5400/dsc00045.jpg
582mg fragment 10mm x 8mm x 3mm
http://www.lunarrock.com/NWA5400/dsc00047.jpg
454mg fragment 8mm x 6mm x 3mm
http://www.lunarrock.com/NWA5400/dsc00049.jpg
298mg fragment 10mm x 7mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00050.jpg
258mg fragment 8mm x 6mm x 2mm
http://www.lunarrock.com/NWA5400/dsc00051.jpg
174mg fragment 6mm x 4mm x 3mm
http://www.lunarrock.com/NWA5400/dsc00052.jpg
cs - complete slice
ps - part slice

Thank you for considering these, I appreciate being the opportunity to bring
such amazing meteorites such as NWA 5400 and others to the scientific and
private communities. There is no need to accept anything other than NWA 5400
when it comes to such a scientifically important meteorite which is in a
class all its own!

Please see below my original announcement of "NWA 5400 - Earth-Related
Meteorite".

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 announcement of "NWA 5400 - Earth-Related Meteorite" June 8, 2010:

>>
Dear List Members,

I would like to announce an important new meteorite that has been under
intense analysis over the last two years by a select group of scientists
from around the world...

NWA 5400: Earth-Related Ungrouped Meteorite

Northwest Africa 5400 may be a sample from a large asteroid or dwarf planet,
which accreted in the early solar nebula in the vicinity of proto-Earth or
Theia. NWA 5400 has oxygen isotope ratios indistinguishable from those of
rocks from the Earth and the Moon, which plot on the TFL (Terrestrial
Fractionation Line). A precise formation age has not yet been measured, but
it cannot be older than 4.54 billion years, which likely makes NWA 5400
anomalously young among primitive achondritic objects from the early Solar
System. It is generally accepted that the Earth-Moon system was created when
Theia collided with proto-Earth about 4.3 billion years ago. Is it possible
that NWA 5400 is somehow related to this phenomenal event?

NWA 5400 adds valuable understanding of events that took place in the early
evolution period of the Solar System. After two years of intense analysis,
scientists at prominent institutions from around the world continue to
diligently study this 'stand-alone' meteorite, which will add to the already
incredible information NWA 5400 has to offer.

Link to 2009 LPSC abstract on NWA 5400:
http://www.lpi.usra.edu/meetings/lpsc2009/pdf/2332.pdf

Link to 2010 LPSC abstract on NWA 5400:
http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1492.pdf

NWA 5400 has a Total Known Weight of 4.818 kg in a single stone that was
discovered in Northwest Africa in 2008. The chocolate-brown mottled matrix
takes an extremely nice polish, which reveals the dazzling olivine crystals
exhibited in this scientifically important new meteorite!

Cross-polarized light optical thin section image of NWA 5400 (width of field
= 1.2mm):
http://www.lunarrock.com/NWA5400/nwa5400xpl.jpg

Image of 58.9-gram complete slice with hologram-like olivine crystals that
dance across the polished surface when tilted from side to side:
http://www.lunarrock.com/NWA5400/nwa5400slice.jpg
<<
Received on Mon 26 Jul 2010 01:18:45 PM PDT