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Northwest Africa 8022
Basic information Name: Northwest Africa 8022
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8022
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 1226 g
Meteoritical Bulletin:  MB 102  (2013)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 288 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 30 Nov 2013
Writeup from MB 102:

Northwest Africa 8022 (NWA 8022)

(Northwest Africa)

Purchased: 2013 May

Classification: Lunar meteorite (feldspathic breccia)

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

Physical characteristics: A single, fine grained stone (1226 g) with patches of remnant, brown fusion crust.

Petrography: (A. Irving and S. Kuehner, UWS) Highly recrystallized fragmental feldspathic breccia containing some larger anorthite grains (up to 2 mm), but mostly composed of extremely fine grained (~10 microns) anorthite, pigeonite, olivine, ilmenite, Cr-ulvöspinel, fayalite, kamacite, pentlandite and rare awaruite.

Geochemistry: Anorthite (An95.9Or0.3), pigeonite (Fs20.6-22.2Wo21.5-10.0; FeO/MnO = 50-58), olivine (Fa31.5-31.7; FeO/MnO = 93-101). Bulk composition (R. Korotev, WUSL): INAA of subsamples gave mean abundances of FeO 3.7 wt.%, and (in ppm) Sc 5, La 2.7, Sm 1.2, Eu 0.98, Yb 1.1, Th 0.7.

Classification: Lunar (feldspathic granulitic breccia).

Specimens: 21.5 g are at UWB. The remainder is with Aaronson.

Data from:
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2013 May
Mass (g):1226
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):31.5-31.7
Ferrosilite (mol%):20.6-22.2
Wollastonite (mol%):21.5-10.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.5
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1558; submitted by A. Irving
   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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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     This is 1 of 8777 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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