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Northwest Africa 13101
Basic information Name: Northwest Africa 13101
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13101
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 68.8 kg
Classification
  history:
Meteoritical Bulletin:  MB 109  (2021)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 344 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 9 Feb 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13101 (NWA 13101)

(Northwest Africa)

Find: 2017 Jan

Classification: Lunar meteorite (feldspathic breccia)

History: A batch of specimens (total weight 68.796 kg), including two large intact stones (28.498 and 24.292 kg) was recovered in January 2017 in Western Sahara or the Western Sahara/Algeria border region, and purchased by DPitt in February 2017 from a Mauritanian dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of angular mineral clasts of anorthite, olivine, orthopyroxene, pigeonite, subcalcic augite, chromite and ilmenite set in a sparsely vesicular, parly vitreous matrix containing minor troilite, kamacite and taenite.

Geochemistry: Olivine (Fa18.5-20.9, FeO/MnO = 88-97, N = 4), orthopyroxene (Fs16.3-17.1Wo2.4-4.0, FeO/MnO = 47-54, N = 2), pigeonite (Fs18.3Wo5.6; Fs37.3-47.1Wo4.4-9.0; FeO/MnO = 53-62; N = 3), subcalcic augite (Fs49.2Wo25.4, FeO/MnO = 63), plagioclase (An96.2-96.6Or0.1, N = 2).

Classification: Lunar (feldspathic breccia).

Specimens: 24.9 g including one polished endcut at UWB; remainder with DPitt.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:2017 Jan
Mass (g):68796
Pieces:several
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):21.5-47.7
Ferrosilite (mol%):38.5-43.0
Wollastonite (mol%):7.1-5.3
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):24.9
Type spec location:UWB
Main mass:DPitt
Comments:Work name MVCH 270C; 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, 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., 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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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9933 approved meteorites from (Northwest Africa) (plus 1837 unapproved names)

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