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Northwest Africa 10122
Basic information Name: Northwest Africa 10122
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10122
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 373 g
Meteoritical Bulletin:  MB 106  (2018)  CO3
Recommended:  CO3    [explanation]

This is 1 of 616 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 14 Mar 2017
Writeup from MB 106:

Northwest Africa 10122 (NWA 10122)

(Northwest Africa)

Purchased: 2015 Jan

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Darryl Pitt in January 2015 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Small chondrules (average apparent diameter ~200 μm), mineral fragments and small CAIs occur in an abundant black matrix. Accessory minerals include chromite, troilite and rare kamacite.

Geochemistry: Olivine (Fa0.5-71.2, N = 3), orthopyroxene (Fs1.2-8.0Wo3.9-3.4, N = 2), subcalcic augite (Fs2.7Wo36.0), augite (Fs1.1Wo43.2).

Classification: Carbonaceous chondrite (CO3).

Specimens: 20.1 g including one polished thin section at UWB. The remainder is held by DPitt.

Data from:
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2015 Jan
Mass (g):372.5
Shock stage:S2
Weathering grade:minimal
Fayalite (mol%):0.5-71.2
Ferrosilite (mol%):1.2-8.0
Wollastonite (mol%):3.9-3.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.1
Type spec location:UWB
Main mass:DPitt
Comments:MAC 98; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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     This is 1 of 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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