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NWA 7034 "The Black Beauty" Unique Martian Meteorite
Bilanga, Diogenite
Camel Donga, Eucrite
NWA 725, Winonaite
NWA 2751, Polymict Eucrite
NWA 2752, Howardite
NWA 2975, Shergottite (Mars)
NWA 3197, Anomalous Howardite
NWA 5363, Ungrouped Achondrite
NWA 6470, Lunar
NWA 7022, Lunar
Tissint, Shergottite (Mars)
Tissint fragments (Mars)
Zaklodzie, Ungrouped Enstatite Achondrite
NWA 5363, Ungrouped Achondrite
This meteorite is unique, and something of an enigma. 
It is the only meteorite yet identified to have oxygen isotope ratios indistinguishable from the Earth-Moon system.  It
(and its pairing, NWA 5400, a fragment from the same stone) likely represent a sample of material that formed in the same region of the early solar system as Earth and the other proto-planets nearby. 

It has been suggested, due to NWA 5363's immense age, that it might even be a portion of the Mars-sized impactor that is theorized to have collided with Earth ~4.517 billion years ago.  These claims are curently unproven, but they are interesting to consider, nonetheless.  

"
In texture, mineral assemblage and mineral compositions, NWA 5400 is similar to brachinites, but the oxygen isotopic compositions plot essentially on the terrestrial fractionation line."
(A. Irving and S. Kuehner, UWS)

What is known about
this stone is that it is a unique, primitive, ungrouped achondrite that very likely formed in the same region as the Earth over four and a half billion years ago.  It is unique and interesting in many respects, and will undoubtedly remain the focus of study for decades to come. 

There are six or seven kilograms of this material known to exist on the planet.  It's interesting, rare, and like nothing else we've ever seen.  Cool stuff. 

I've seen it selling for between $40 and $350 per gram (big range, right?).  I believe it is far underpriced at the low end of that range.  It is more than ten times more rare than lunar or martian material and, as best we can tell, there's no planet-sized repository of it still around from which we could retrieve samples in the future. 
If older achondrites like brachinites and angrites fetch premiums of a few hundred dollars per gram when there are more of them around, this, in my opinion, should be a bit more.  There's less of it around, it's just as old, and it's more interesting because of its intriguing isotopes. 

I doubt that much, if any, of it will be available in a year or two. 

These specimens were all prepared by Marlin Cilz, polished on one side and left unpolished on the other.  Each will come in a membrane box with a Utas Collection label.  Prices are scaled with weight.


0.278 grams - $30 shipped


0.278 grams - $30 shipped
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0.305 grams - $30 shipped


0.305 grams, the smaller cut surface is polished - $30 shipped
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0.373 grams - $40 shipped



0.373 grams - $40 shipped
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1.842 grams - $170 shipped



1.842 grams - $170 shipped
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2.605 grams - $250 shipped



2.605 grams - $250 shipped
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3.396 grams - $280 shipped


3.396 grams - $280 shipped
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3.630 grams - $295 shipped



3.630 grams - Great olivine aggregate (see refraction in first and second photos) - $295 shipped
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3.892 grams - $320 shipped


3.892 grams - another great aggregate of olivine crystals - $320 shipped
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5.658 gram wire-sawn end - $305 shipped



I'm still not sure why this piece came back unpolished, but it was. 
So, it's less. - $305 shipped

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3.365 grams - sold
4.200 grams -
sold
7.188 grams -
sold
7.671 grams -
sold


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