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Northwest Africa 14188
Basic information Name: Northwest Africa 14188
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14188
Observed fall: No
Year found: 2021
Country: Niger
Mass:help 260 g
Classification
  history:
Recommended:  Lunar (bas. breccia)    [explanation]

This is 1 of 16 approved meteorites classified as Lunar (bas. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 13 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14188 (NWA 14188)

Niger

Purchased: 2021 Feb

Classification: Lunar meteorite (basaltic breccia)

History: Found in Niger and purchased by Craig Zlimen in February 2021 from an Algerian dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of basaltic lithic clasts and related crystalline debris (predominantly olivine, pigeonite, subcalcic augite and anorthite) in a finer grained matrix. Accessory phases are Ti-chromite, troilite, kamacite (fresh to partly altered) and minor secondary barite.

Geochemistry: Olivine (Fa37.1-39.1, FeO/MnO = 102-117, N = 4), pigeonite (Fs26.1-28.0Wo9.4-11.4; Fs24.6Wo18.8; FeO/MnO = 56-62; N = 3), subcalcic augite (Fs21.4Wo25.0, FeO/MnO = 55), anorthite (An95.4-95.6Or0.3-0.2, N = 3).

Classification: Lunar (basaltic breccia).

Specimens: 20.0 g including one polished endcut at UWB; remainder with Mr. C. Zlimen.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Feb
Mass (g):260
Pieces:1
Class:Lunar (bas. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):37.1-39.1
Ferrosilite (mol%):26.1-28.0; 24.6; 21.4
Wollastonite (mol%):9.4-11.4; 18.8; 25.0
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.0
Type spec location:UWB
Main mass:C. Zlimen
Comments:Work name Ahmed 02; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Niger
Coordinates:Unknown.

Statistics:
     This is 1 of 94 approved meteorites from Niger (plus 3 unapproved names)

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