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Northwest Africa 13979
Basic information Name: Northwest Africa 13979
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13979
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 1321 g
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 321 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 18 Jun 2021
Writeup from MB 110:

Northwest Africa 13979 (NWA 13979)

(Northwest Africa)

Purchased: 2013

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Mohammed Sbai in 2013 from a dealer in Boujdour, Morocco and subsequently acquired by Maryam al Faheem in Al Ain City, Abu Dhabi, UAE in December 2020.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed predominantly of mineral clasts of anorthite, olivine, pigeonite, exsolved pigeonite, subcalcic augite and augite, plus sparse basaltic lithic clasts, in a fine grained matrix containing accessory ilmenite, low-Ti chromite and troilite.

Geochemistry: Olivine (Fa29.2-54.1, FeO/MnO = 91-113, N = 5), low-Ca pyroxene host (Fs26.9-43.4Wo1.5-2.9, FeO/MnO = 59-61, N = 2), pigeonite (Fs34.4Wo6.1, FeO/MnO = 58), subcalcic augite (Fs19.1Wo32.5, FeO/MnO = 44), augite (Fs14.3-20.0Wo39.9-43.6, FeO/MnO = 44-47, N = 2), plagioclase (An95.2-97.0Or0.1, N = 3).

Classification: Lunar (feldspathic breccia).

Specimens: 22.1 g including one polished endcut at UWB; remainder with M. al Faheem.

Data from:
  Table 0
  Line 0:
Place of purchase:Boujdour
Date:P 2013
Mass (g):1321
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):29.2-54.1
Ferrosilite (mol%):26.9; 43.4; 34.3; 19.1; 14.3
Wollastonite (mol%):2.9; 1.5; 6.1; 32.5; 43.6
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):22.1
Type spec location:UWB
Main mass:M. al Faheem
Comments:Work name MaF-2; 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)
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)
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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     This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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