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Northwest Africa 10126
Basic information Name: Northwest Africa 10126
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10126
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 17.6 g
Meteoritical Bulletin:  MB 105  (2016)  CM2
Recommended:  CM2    [explanation]

This is 1 of 606 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 9 May 2016
Writeup from MB 105:

Northwest Africa 10126 (NWA 10126)

(Northwest Africa)

Purchased: 2013 Dec

Classification: Carbonaceous chondrite (CM2)

History: Purchased by Gary Fujihara in December 2013 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Very small, well-formed chondrules together with angular mineral fragments and amoeboid, very fine grained CAI are set in a finer grained matrix (deep reddish brown in thin section) containing pyrrhotite and cronstedtite-tochilinite.

Geochemistry: Olivine (Fa0.4-40.6, Cr2O3 in ferroan examples 0.08-0.43 wt.%, N = 7), orthopyroxene (Fs1.6-7.5Wo0.9-2.2, N =2), subcalcic augite (Fs39.2Wo31.3), diopside (Fs1.0Wo42.1). Oxygen isotopic composition (J. Gattacceca, C. Sonzogni, CEREGE) from analysis of one 1.5 mg aliquot of a powdered 20 mg bulk sample is δ17O=1.73‰, δ18O=7.78‰ , Δ17O=-2.33‰ (linearized, slope 0.5247, analytical uncertainties 0.08‰, 0.12‰, 0.03‰ respectively).

Classification: Carbonaceous chondrite (CM2).

Specimens: 3.52 g including one polished thin section at UWB. The remainder is held by Mr. G. Fujihara.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2013 Dec
Mass (g):17.6
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):0.4-40.6
Ferrosilite (mol%):1.6-7.5
Wollastonite (mol%):0.9-2.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):3.52
Type spec location:UWB
Main mass:G. Fujihara
Comments:GF15-1; submitted by A. Irving
Plots: O isotopes:  
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
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)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 8138 approved meteorites from (Northwest Africa) (plus 1941 unapproved names)

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