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Northwest Africa 13279
Basic information Name: Northwest Africa 13279
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13279
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 6.42 kg
Classification
  history:
Recommended:  CV3    [explanation]

This is 1 of 539 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 2 May 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13279 (NWA 13279)

(Northwest Africa)

Purchased: 2019 Apr

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Mark Lyon in April 2019 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed PO and BO chondrules (apparent diameter 890 ± 400 µm, N = 24) and irregularly-shaped, very fine grained CAI are set in fine grained matrix (~20 vol.%, deep reddish sepia brown in thin section).

Geochemistry: Olivine in chondrules (Fa11.8±14.2, range Fa0.4-38.2, N = 7), low-Ca pyroxene (Fs7.7±6.0Wo2.2±1.3, range Fs0.8-12.2Wo1.0-3.6, N = 3), olivine in matrix (Fa49.8-53.6, N = 2), diopside (Fs0.5Wo43.8; Fs0.5Wo49.0; N = 2), plagioclase (An81.6-88.0Or0.0, N = 2).

Classification: Carbonaceous chondrite (CV3).

Specimens: 20.9 g including one polished thin section at UWB; 1418 g main mass with Mr. C. Shipbaugh; remainder with Mr. M. Lyon.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019 Apr
Mass (g):6418
Pieces:5
Class:CV3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):11.8±14.2
Ferrosilite (mol%):7.7±6.0
Wollastonite (mol%):2.2±1.3
Classifier:A. Irving, UWS, and P. Carpenter, WUSTL
Type spec mass (g):20.9
Type spec location:UWB
Main mass:M. Lyon/C. Shipbaugh
Comments:Work name Lyon19-5; 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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7377 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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