AUBRITE Melt-Breccia NWA 15304 - 363G / STUNNING, One of a Kind & VERY RARE!

Description

NWA 15304
363g
***STUNNING RARE AUBRITE***
Very Lunar looking Aubrite! Makes it extra special and rare.  In speaking to Dr. Tony Irving he also like us thought for sure from its looks that it was Lunar.  After testing he called me shocked that it was an Aubrite...even more rare than a
Lunar!  He said he has never seen an Aubrite like this.  Very rare, unique and one of a kind.
AN EXCEPTIONAL SPECIMEN
YOU ARE PURCHASING
NWA 15304
AUBRITE MELT-BRECCIA METEORITE
This meteorite was classified & approved as NWA 15304
Classified and studied by Dr Anthony J. Irving and team at University of Washington
AUTHENTICITY  is GUARANTEED
CERTIFICATE OF AUTHENTICITY INCLUDED
FROM D. LEHMAN
NWA DIRECT METEORITES, INC.
Most of what we are selling comes directly from family and friends finding
meteorites in the desert and sending them to us here in U.S..  With a family member now living here and as one of the founders of NWA Direct Meteorites, we hope to continue to provide great meteorites at reasonable prices.
We are open to offers on all of our meteorites.
OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database
Northwest Africa 15304
Basic information
Name:
Northwest Africa 15304
This is an OFFICIAL meteorite name.
Abbreviation:
NWA 15304
Observed fall:
No
Year found:
2022
Country:
(Northwest Africa)
Mass:
393 g
Classification
history:
Recommended:
Aubrite
[explanation]
This is 1 of 78 approved meteorites classified as Aubrite.
[show all]
Search for other:
Achondrites
,
Aubrites
,
Enstatite achondrites
, and
Enstatite-rich meteorites
Comments:
Approved 12 Nov 2022
Writeup
Writeup from MB 111:
Northwest Africa 15304
(NWA 15304)
(Northwest Africa)
Purchased: 2022 Feb
Classification: Enstatite achondrite (Aubrite)
History
: Purchased in February 2022 from a dealer in Ouargla, Algeria, by an Algerian team represented by David Lehman.
Petrography
: (A. Irving,
UWS
and P. Carpenter,
WUSL
) Breccia composed of lithic clasts and related crystalline debris in a dark fine grained, partly fluidal matrix (sepia brown and almost opaque in thin section). The mineralogy is dominated by enstatite (exhibiting undulose extinction), which is accompanied by accessory forsterite, diopside, fluororichterite, cristobalite, alabandite, Si-bearing metal (with variable Ni and Si contents), Cr-Ti-troilite and alkali feldspathic glass (confined to the matrix).
Geochemistry
: Enstatite (Fs
0.0±0.0
Wo
0.7±0.0
, N = 2), forsterite (Fa
0.0±0.0
, N = 2), diopside (Fs
0.0-0.1
Wo
45.8-44.4
, N = 2), fluororichterite [Na0.91Ca0.94Mg5.12K0.07Al0.02Si7.91O22F2], kamacite (Ni 5.4 wt.%, Si 0.9 wt.%; Ni 3.1 wt.%, Si 2.0 wt.%; N = 2), Si-rich metal (Ni 2.2 wt.%, Si 8.5 wt.%), Ni-rich metal (Ni 12.7 wt.%, Si 1.4 wt.%).
Classification
: Aubrite (melt-matrix breccia, richterite-bearing).
Specimens
: 28.5 g including a polished thin section and a polished endcut at
UWB
; remainder with Mr. D. Lehman.
Data from:
MB111
Table 0
Line 0:
Place of purchase:
Ouargla, Algeria
Date:
P 2022 Feb
Mass (g):
393
Pieces:
1
Class:
Aubrite
Shock stage:
low
Weathering grade:
low
Fayalite (mol%):
0.0±0.0
Ferrosilite (mol%):
0.0±0.0; 0.0-0.1
Wollastonite (mol%):
0.7±0.0; 45.8-44.4
Classifier:
A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):
28.5
Type spec location:
UWB
Main mass:
D. Lehman
Comments:
Work name DL 1130; submitted by A. Irving
Institutions
and collections
UWS
: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL
: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB
: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References:
Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:
Coordinates:
Unknown.
Statistics:
This is 1 of 8742 approved meteorites from
(Northwest Africa)
(plus 1879 unapproved names)
Also see:
This lists the most popular meteorites among people who looked up this meteorite.
Revision
history:
This lists important revisions made to data for this record.