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Northwest Africa 12384
Basic information Name: Northwest Africa 12384
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12384
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 244 g
Classification
  history:
Recommended:  Lunar (bas. breccia)    [explanation]

This is 1 of 9 approved meteorites classified as Lunar (bas. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 1 Jan 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12384 (NWA 12384)

(Northwest Africa)

Purchased: 2018 Nov

Classification: Lunar meteorite (basaltic breccia)

History: Purchased in Agadir, Morocco, in November 2018 by Aziz Habibi.

Physical characteristics: Two dense stones (total 244 g) coated by a thin, dark brown patina, but exhibiting a very fresh, gray interior with some visible basaltic clasts.

Petrography: (P. Carpenter, WUSL and A. Irving, UWS) The specimen is a breccia consisting of rounded mare basalt clasts with intersertal texture set in a matrix of related crystalline debris. Major mineral phases are olivine, pigeonite (some zoned to ferropigeonite) and anorthite with accessory ilmenite, merrillite, fluorapatite, troilite, zirconolite, tranquillityite and FeNi metal. The basalt clasts also contain K-rich mesostasis. A fine grained vesicular shock vein crosscuts the studied sample.

Geochemistry: Olivine in breccia matrix (Fa30.0-50.4, FeO/MnO = 93-113, N = 6), pigeonite in breccia matrix (Fs30.6-31.8Wo10.4-22.7, FeO/MnO = 54-58, N = 2), pigeonite in basalt clast (cores Fs28.9-29.4Wo7.9-8.4, FeO/MnO = 50-56, N = 3; rims Fs44.8-79.6Wo16.3-20.4, FeO/MnO = 59-88, N = 3), subcalcic augite in breccia matrix (Fs24.6Wo31.5, FeO/MnO = 59), plagioclase in breccia matrix (An81.1-95.6Or1.1-0.1, N = 2), plagioclase in basalt clast (An82.3-89.7Or0.7-0.4, N = 4).

Classification: Lunar (mare basalt breccia).

Specimens: 22.3 g including one polished endcut and one polished thin section at UWB; remainder with Luc Labenne.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2018 Nov
Mass (g):244
Pieces:2
Class:Lunar (bas. breccia)
Shock stage:high
Weathering grade:low
Fayalite (mol%):30.0-50.4
Ferrosilite (mol%):28.9-79.6; 24.6
Wollastonite (mol%):7.9-22.7; 31.5
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):22.3
Type spec location:UWB
Main mass:Labenne
Comments:Work name AH 175; 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)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Ludovic Callens   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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