Meteoritical Bulletin: Entry for Northwest Africa 10122

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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: 373 g

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	CO3
Recommended:			CO3 [explanation]

This is 1 of 645 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

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 (Fa_0.5-71.2, N = 3), orthopyroxene (Fs_1.2-8.0Wo_3.9-3.4, N = 2), subcalcic augite (Fs_2.7Wo_36.0), augite (Fs_1.1Wo_43.2).

Classification: Carbonaceous chondrite (CO3).

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

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Zagora
Date:	P 2015 Jan
Mass (g):	372.5
Pieces:	3
Class:	CO3
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

Institutions
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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)

Catalogs:

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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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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