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Northwest Africa 11212
Basic information Name: Northwest Africa 11212
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11212
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 197.5 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 336 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 26 Apr 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11212 (NWA 11212)

(Northwest Africa)

Purchased: 2016 Nov

Classification: Lunar meteorite (feldspathic breccia)

History: Purportedly found buried in soil in the strewnfield near Gataa Sfar and purchased by Fabien Kuntz in November 2016 from a dealer in Zagora, Morocco.

Physical characteristics: A group of small stones (total 197.5 g) lacking fusion crust. Fresh interiors exhibit white to beige clasts in a dark gray matrix.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular mineral grains of anorthite, olivine, pigeonite, ferropigeonite, subcalcic augite, augite, Ti-chromite and ilmenite in a finer grained, partly vesicular matrix containing kamacite, troilite, pentlandite, Mg-ilmenite and minor barite. Small bubbles are concentrated in groups within the matrix.

Geochemistry: Olivine (Fa28.7-36.1, FeO/MnO = 102-116, N = 3), orthopyroxene (Fs53.4Wo1.7, FeO/MnO = 78), pigeonite (Fs20.6Wo7.8, FeO/MnO = 67), ferropigeonite (Fs56.3Wo21.1, FeO/MnO = 66), subcalcic augite (Fs29.4Wo26.4, FeO/MnO = 71), augite (Fs9.9Wo37.0, FeO/MnO = 68), plagioclase (An94.2-96.7Or0.3, N = 2).

Classification: Lunar (feldspathic breccia). Likely paired with Rabt Sbayta 002 and Rabt Sbayta 004.

Specimens: 20.28 g including one polished endcut at PSF; remainder with Kuntz.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2016 Nov
Mass (g):197.5
Pieces:several
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):28.7-36.1
Ferrosilite (mol%):20.6; 20.4; 53.4; 56.3; 9.9
Wollastonite (mol%):7.8; 26.4; 1.7; 21.2; 37.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.28
Type spec location:PSF
Main mass:F. Kuntz
Comments:Work name K315; submitted by A. Irving
Institutions
   and collections		 PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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