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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:
Meteoritical Bulletin:  MB 111  (2023)  Lunar (bas. breccia)
Recommended:  Lunar (bas. breccia)    [explanation]

This is 1 of 21 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Domjan Svilkovic   
Geography:

Niger
Coordinates:Unknown.

Statistics:
     This is 1 of 119 approved meteorites from Niger (plus 4 unapproved names)
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Revision
  history:
  This lists important revisions made to data for this record.

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