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Northwest Africa 11216
Basic information Name: Northwest Africa 11216
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11216
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 222 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 127 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 11216 (NWA 11216)

(Northwest Africa)

Purchased: 2017 Feb

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Aras Jonikas in February 2017 from a dealer in Agadir, Morocco.

Physical characteristics: A group of small stones (total 222.34 g) with brown weathered exterior surfaces. Interiors are fresh, and consist of small whitish to pale yellowish clasts in a dark-gray matrix containing vesicles.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular mineral grains of anorthite, olivine, pigeonite, subcalcic ferroaugite, Ti-free chromite, Ti-Cr-Fe spinel, ilmenite (with rare inclusions of baddeleyite) and fayalite in a finer grained, vesicular matrix containing kamacite, troilite and minor celestite.

Geochemistry: Olivine (Fa17.5-27.9, FeO/MnO = 94-118, N = 3), orthopyroxene (Fs22.6Wo4.0, FeO/MnO = 72), pigeonite (Fs24.4Wo8.1; Fs33.3Wo16.4; FeO/MnO = 62-73; N = 2), subcalcic ferroaugite (Fs73.5Wo25.6, FeO/MnO = 66), plagioclase (An94.8-96.8Or0.4, N = 2).

Classification: Lunar (feldspathic breccia).

Specimens: 20.17 g including one polished endcut at PSF; remainder with Mr. A. Jonikas.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2017 Feb
Mass (g):222.34
Pieces:many
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):17.5-27.9
Ferrosilite (mol%):22.6; 24.4; 33.3; 73.5
Wollastonite (mol%):4.0; 8.1; 16.4; 25.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.17
Type spec location:PSF
Main mass:A. Jonikas
Comments:Work name AJ17-1; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 106, in preparation (2017)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 5898 approved meteorites from (Northwest Africa) (plus 2063 unapproved names)

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