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Northwest Africa 13112
Basic information Name: Northwest Africa 13112
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13112
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 386 g
Meteoritical Bulletin:  MB 109  (2021)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 342 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 9 Feb 2020
Writeup from MB 109:

Northwest Africa 13112 (NWA 13112)

(Northwest Africa)

Purchased: 2019 Jun

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Luc Labenne in June 2019 from a Moroccan dealer at the Ensisheim Show, and subsequently acquired by Theatrum Mundi.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of angular mineral grains of anorthite, orthopyroxene, pigeonite and augite plus some glass beads set in a finer grained matrix containing ilmenite, Ti chromite, troilite, pentlandite, kamacite and taenite.

Geochemistry: Olivine (Fa37.8-49.1, FeO/MnO = 81-98, N = 5), orthopyroxene (Fs33.8-37.2Wo2.5-1.8, FeO/MnO = 52-61, N = 3), pigeonite (Fs41.5Wo6.1, FeO/MnO = 63), augite (Fs25.0Wo35.4; Fs18.4Wo40.8; Fs12.5-16.3Wo45.7-42.7; FeO/MnO = 43-54; N = 5), anorthite (An94.7-96.6Or0.1, N = 3).

Classification: Lunar (feldspathic breccia).

Specimens: 20.5 g including one polished piece at UWB; main mass with Theatrum Mundi (Via Cesalpino 20, 52100 Arezzo, Italy).

Data from:
  Table 0
  Line 0:
Place of purchase:Ensisheim
Date:P 2019 Jun
Mass (g):386
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):37.8-49.1
Ferrosilite (mol%):33.8-37.2; 12.5-16.3
Wollastonite (mol%):2.5-1.8; 45.7-42.7
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.5
Type spec location:UWB
Main mass:Theatrum Mundi
Comments:Work name LAB 051119A; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)
References: Published in Gattacceca J., McCubbin F. M., Grossman J., Bouvier A., Bullock E., Chennaoui Aoudjehane H., Debaille V., D’Orazio M., Komatsu M., Miao B. and Schrader D. L. (2021) The Meteoritical Bulletin, No. 109. Meteoritics & Planetary Science 56, 1626–1630.
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     This is 1 of 9829 approved meteorites from (Northwest Africa) (plus 1851 unapproved names)

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