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Northwest Africa 7453
Basic information Name: Northwest Africa 7453
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7453
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 128 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 571 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 3 Jun 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7453 (NWA 7453)

(Northwest Africa)

Purchased: 2012 Aug

Classification: HED achondrite (Eucrite)

History: Purchased in Temara, Morocco by Adam Aaronson in August 2012.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh basaltic eucrite breccia (monomict) with closely-packed clasts. Minerals are exsolved pigeonite, calcic plagioclase, accessory ilmenite, chromite and troilite.

Geochemistry: Orthopyroxene host (Fs60.7-61.5Wo2.6-2.2), clinopyroxene exsolution lamellae (Fs26.9-27.6Wo43.2-41.8).

Classification: Eucrite

Specimens: 20.9 g of sample and one polished thin section are on deposit at UWB. Aaronson holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2012 Aug
Mass (g):128
Pieces:1
Class:Eucrite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):60.7-61.5; 26.9-27.6
Wollastonite (mol%):2.6-2.2; 43.2-41.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.9
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1389; 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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