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Northwest Africa 7292
Basic information Name: Northwest Africa 7292
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7292
Observed fall: No
Year found: 2012
Country: Mauritania
Mass:help 9.9 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 472 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 29 Sep 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7292 (NWA 7292)

Mauritania

Found: 2011

Classification: HED achondrite (Eucrite)

History: Discovered by local people in Mauritania in 2011, purchased in Nouadhibou in 2012 March.

Physical characteristics: One 9.9 g stone, largely covered with black glossy fusion crust, saw-cut surface shows breccia of minor fine-grained gray groundmass with subophitic clasts. Magnetic susceptibility log χ =2.86.

Petrography: Microprobe examination of a thin section shows clasts of subophitic texture separated by fine-grained veins, many pyroxenes with exsolution lamellae. Monomict breccia based on similar pyroxene compositional range in host and clasts.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Ca-poor pyroxene: Fs61-63En34-37 (n=3); Ca-pyroxene: Fs34-61En30-36Wo5-36 (N=9); feldspar: An79-92Or<1.5 (n=17); ilmenite and SiO2.

Classification: Achondrite (Eucrite, monomict)

Specimens: 2.0 g on deposit at Kiel, main mass Bart.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Nouadhibou
Date:2011
Mass (g):9.9
Pieces:1
Class:Eucrite
Ferrosilite (mol%):61.1 (n=1)
Wollastonite (mol%):1.9
Magnetic suscept.:2.86
Classifier:Bart
Type spec mass (g):2.0
Type spec location:Kiel
Main mass:Bart
Finder:anonymous
Comments:Submitted by R. Bartoschewitz
Institutions
   and collections
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Geography:

Mauritania
Coordinates:Unknown.

Statistics:
     This is 1 of 127 approved meteorites from Mauritania (plus 1 unapproved name) (plus 2 impact craters)

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