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Northwest Africa 11617
Basic information Name: Northwest Africa 11617
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11617
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 1200 g
Meteoritical Bulletin:  MB 107  (2018)  LL(L)3
Recommended:  LL(L)3    [explanation]

This is 1 of 23 approved meteorites classified as LL(L)3.   [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 11617 (NWA 11617)

(Northwest Africa)

Purchased: 2017 Nov

Classification: Ordinary chondrite (LL(L)3)

History: Purchased in Temara, Morocco, by Aaronson in November 2017.

Petrography: (A. Irving and S. Kuehner, UWS) Closely packed, well-formed chondrules (apparent diameter 680±420 µm, N = 18) are set in a finer grained matrix containing altered kamacite.

Geochemistry: Olivine (Fa0.8-48.0, Cr2O3 in ferroan examples 0.03-1.04 wt.%, mean 0.24±0.40 wt.%, N = 8), orthopyroxene (Fs0.2-21.4Wo0.4-3.9, N = 3), subcalcic augite (Fs6.9-12.4Wo30.4-25.0, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.21.

Classification: Ordinary chondrite (LL(L)3).

Specimens: 21.2 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 Nov
Mass (g):1200
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.8-59.5
Ferrosilite (mol%):0.2-21.4
Wollastonite (mol%):0.4-3.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.2
Type spec location:UWB
Main mass:A. Aaronson
Comments:Work name M2061; 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 7727 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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