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Northwest Africa 11669
Basic information Name: Northwest Africa 11669
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11669
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 23 kg
Meteoritical Bulletin:  MB 107  (2018)  LL3
Recommended:  LL3    [explanation]

This is 1 of 365 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 20 Feb 2018
Writeup from MB 107:

Northwest Africa 11669 (NWA 11669)

(Northwest Africa)

Purchased: 2013 Dec

Classification: Ordinary chondrite (LL3)

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

Petrography: (A. Irving and S. Kuehner, UWS) Closely-packed, well-formed chondrules (apparent diameter 580±340 µm, N = 18) are set in a recrystallized matrix containing altered kamacite.

Geochemistry: Olivine (Fa0.5-61.4, Cr2O3 in ferroan examples 0.07-0.18 wt.%, mean 0.12±0.04 wt.%, N = 8), orthopyroxene (Fs3.0-14.9Wo0.3-3.6, N = 3), subcalcic augite (Fs14.5Wo33.0), diopside (Fs1.0Wo45.9). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.22.

Classification: Ordinary chondrite (LL3).

Specimens: 26.4 g including one polished thin section at UWB; main mass with Aaronson.

Data from:
  Table 0
  Line 0:
Place of purchase:Rissani
Date:P 2013 Dec
Mass (g):23000
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.5-61.4
Ferrosilite (mol%):3.0-14.9
Wollastonite (mol%):0.3-3.6
Magnetic suscept.:3.22
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):26.4
Type spec location:UWB
Main mass:A. Aaronson
Comments:Work name M1630; 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 7688 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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