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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:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 189 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
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 7171 approved meteorites from (Northwest Africa) (plus 2003 unapproved names)

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