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Northwest Africa 15052
Basic information Name: Northwest Africa 15052
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15052
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 202 g
Classification
  history:
Recommended:  Lunar (bas. breccia)    [explanation]

This is 1 of 19 approved meteorites classified as Lunar (bas. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 20 Jun 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15052 (NWA 15052)

(Northwest Africa)

Purchased: 2022 May

Classification: Lunar meteorite (basaltic breccia)

History: Purchased by Terry Boudreaux in May 2022 from a dealer in Zagora, Morocco.

Physical characteristics: A single, very dark gray stone (202 g) lacking fusion crust. The fresh interior contains small gray to white clasts in a dark gray matrix.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed predominantly of crystalline debris and intact lithic clasts from mare basalt lithologies. Some lithic clasts contain acicular plagioclase and several have glass present, and at least one ilmenite-bearing pigeonite basalt clast was observed. Minerals include olivine, calcic plagioclase, pigeonite, ferropigeonite, subcalcic augite, ilmenite, troilite, zircon, REE-bearing merrillite, baddeleyite, Ti-chromite and rare kamacite. Glass fragments (some K-bearing) as well as symplectitic intergrowths of fayalite+ferroaugite+silica polymorph are also present.

Geochemistry: Olivine (Fa31.3-99.7, FeO/MnO = 94-110, N = 7), pigeonite (Fs39.8Wo7.7; Fs27.6Wo20.1; FeO/MnO = 56-64; N = 2), ferropigeonite (Fs71.0-79.6Wo14.6-13.8, FeO/MnO = 62-71, N = 2), subcalcic augite (Fs26.6Wo29.6; Fs39.8Wo27.8; FeO/MnO = 51-66; N = 2), ferroaugite (Fs56.7Wo39.5, FeO/MnO = 79), plagioclase (An83.8-91.4Or1.8-0.2, N = 4).

Classification: Lunar (basaltic breccia).

Specimens: 20.l g including a polished endcut at UWB; remainder with Mr. T. Boudreaux.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2022 May
Mass (g):202
Pieces:1
Class:Lunar (bas. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):37.7-73.2; 99.7
Ferrosilite (mol%):39.8; 71.0-79.6; 26.6-39.8; 56.7
Wollastonite (mol%):7.7; 14.6-13.8; 20.1-29.6; 39.5
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.1
Type spec location:UWB
Main mass:T. Boudreaux
Comments:Work name DB-57; 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)
Boudreaux: Terry Boudreaux, Illinois, United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8777 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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