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Northwest Africa 7312
Basic information Name: Northwest Africa 7312
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7312
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 778 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 93 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 18 Dec 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7312 (NWA 7312)

(Northwest Africa)

Purchased: 2012 Apr

Classification: Primitive achondrite (Lodranite)

History: Purchased by Adam Aaronson in Temara, Morocco in 2011 August.

Petrography: (A. Irving and S. Kuehner, UWS) Coarse-grained protogranular aggregate of olivine and orthopyroxene with minor kamacite along some grain boundaries. Tiny blebs of metal and iron sulfide are present within silicates.

Geochemistry: Olivine (Fa3.2-3.5, FeO/MnO = 17, Cr2O3 = 0.2 wt.%), orthopyroxene (Fs2.9-3.3Wo1.8).

Classification: Lodranite

Specimens: 20 g of type material and one polished thin section are on deposit at UWB. The remaining material is held by  Aaronson.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2012 Apr
Mass (g):778
Pieces:1
Class:Lodranite
Shock stage:low
Weathering grade:low
Fayalite (mol%):3.2-3.5
Ferrosilite (mol%):2.9-3.3
Wollastonite (mol%):1.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWB
Main mass:Aaronson
Comments:M1375; 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)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 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.

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