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Northwest Africa 11615
Basic information Name: Northwest Africa 11615
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11615
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 3.11 kg
Meteoritical Bulletin:  MB 107  (2018)  LL3
Recommended:  LL3    [explanation]

This is 1 of 371 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 22 Jan 2018
Writeup from MB 107:

Northwest Africa 11615 (NWA 11615)

Northwest Africa

Purchased: 2017 Aug

Classification: Ordinary chondrite (LL3)

History: Purchased in Temara, Morocco by Adam Aaronson in August 2017.

Petrography: (A. Irving and S. Kuehner, UWS) Closely packed, well-formed chondrules (apparent diameter 710±420 µm, N = 18) are set in a finer grained matrix containing altered kamacite.

Geochemistry: Olivine (Fa0.7-41.7, Cr2O3 in ferroan examples 0.06-0.10 wt.%, mean 0.08±0.02 wt.%, N = 8), orthopyroxene (Fs2.8-21.2Wo0.2-3.0, N = 3), pigeonite (Fs17.8-21.9Wo20.9-16.2, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.73.

Classification: Ordinary chondrite (LL3).

Specimens: 32.8 g including one polished thin section at UWB; main mass with Aaronson.

Data from:
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2017 Aug
Mass (g):3114
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.7-41.7
Ferrosilite (mol%):2.8-21.2
Wollastonite (mol%):0.2-3.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):32.8
Type spec location:UWB
Main mass:Aaronson
Comments:Work name M2056; 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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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