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Northwest Africa 8179
Basic information Name: Northwest Africa 8179
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8179
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 245 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 515 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 18 May 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8179 (NWA 8179)

(Northwest Africa)

Purchased: 2013 Dec

Classification: Ureilite

History: Purchased in Temara, Morocco by Adam Aaronson in December 2013.

Petrography: (A. Irving and S. Kuehner, UWS) Relatively coarse-grained, protogranular aggregate of predominantly olivine (with reduced rims containing stained Fe metal) accompanied by minor orthopyroxene and pigeonite.

Geochemistry: Olivine (cores Fa23.8, with reduced rims Fa12.5; Cr2O3 = 0.5 wt.%), orthopyroxene (Fs25.2-25.3Wo2.1-4.5), pigeonite (Fs19.0-19.6Wo10.7-11.0).

Classification: Ureilite. This specimen is unusual among ureilites in containing orthopyroxene in addition to the typical pigeonitic pyroxene.

Specimens: 20.1 g including a polished thin section at UWB. The remainder is held by Aaronson.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2013 Dec
Mass (g):245
Pieces:1
Class:Ureilite
Shock stage:moderate
Weathering grade:low
Fayalite (mol%):23.8
Ferrosilite (mol%):25.2-25.3; 19.0-19.6
Wollastonite (mol%):2.1-4.5; 10.7-11.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.1
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1613; 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. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7009 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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