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Northwest Africa 11243
Basic information Name: Northwest Africa 11243
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11243
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 80 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 9 Jun 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11243 (NWA 11243)

(Northwest Africa)

Purchased: 2016 Dec

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Ken Regelman in December 2016 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular mineral fragments and sparse olivine noritic lithic clasts in a finer grained matrix. Minerals are anorthite, olivine, orthopyroxene, pigeonite, ferropigeonite, fayalite, silica polymorph, Al-Ti-chromite, kamacite, ilmenite, troilite and calcite.

Geochemistry: Olivine (Fa23.3, FeO/MnO = 101), orthopyroxene (Fs12.9-26.3Wo4.2-2.4, FeO/MnO = 60-74, N = 2), pigeonite (Fs30.1Wo8.7, FeO/MnO = 66), ferropigeonite (Fs 61.1Wo24.4, FeO/MnO = 64), fayalite (Fa87.4, FeO/MnO = 80), anorthite (An97.7-98.3Or0.3-0.1, N = 2).

Classification: Lunar (feldspathic breccia).

Specimens: 16.24 g including one polished slice at UWB; remainder with Mr. K. Regelman.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016 Dec
Mass (g):80
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):23.3; 87.4
Ferrosilite (mol%):12.9-26.3; 30.1; 61.1
Wollastonite (mol%):4.2-2.4; 8.7; 24.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):16.24
Type spec location:UWB
Main mass:K. Regelman
Comments:Work name KR17-1; 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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 106, in preparation (2017)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

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

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