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Northwest Africa 8041
Basic information Name: Northwest Africa 8041
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8041
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 862 g
Meteoritical Bulletin:  MB 103  (2014)  LL3-5
Recommended:  LL3-5    [explanation]

This is 1 of 8 approved meteorites classified as LL3-5.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 26 Jul 2014
Writeup from MB 103:

Northwest Africa 8041 (NWA 8041)

(Northwest Africa)

Purchased: 2013 Feb

Classification: Ordinary chondrite (LL3-5)

History: Purchased by E. Twelker in February 2013 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Genomict breccia consisting of multiple related components: some large, well-formed, isolated chondrules, LL4 chondrite clasts, LL5 chondrite clasts, finely recrystallized LL7 chondrite clasts, black shock-darkened clasts, and scattered large grains (up to 3 mm) of troilite. Olivine, orthopyroxene, clinopyroxene, sodic plagioclase, altered kamacite, taenite, chromite and troilite.

Geochemistry: Olivine (Fa29.6-32.1; rare magnesian grains Fa10.9; Cr2O3 in ferroan olivine 0.03-0.06 wt.%, N = 5), orthopyroxene (Fs23.7-24.9Wo2.3-2.1; Fs6.8Wo0.3), clinopyroxene (Fs10.2-11.8Wo43.9-42.1).

Classification: Ordinary chondrite (LL3-5).

Specimens: 26.9 g and one polished thin section are at UWB. The remainder is held by Twelker.

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2013 Feb
Mass (g):862
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):29.6-32.1
Ferrosilite (mol%):23.7-24.9
Wollastonite (mol%):2.3-2.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):26.9
Type spec location:UWB
Main mass:E. Twelker
Comments:ET13-5; 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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Twelker: Eric Twelker, P.O. Box 844, Port Townsend, WA 98368, United States; Website (private address; updated 1 Dec 2014)
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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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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