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Northwest Africa 11249
Basic information Name: Northwest Africa 11249
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11249
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 73.6 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 121 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 11249 (NWA 11249)

(Northwest Africa)

Purchased: 2017 Jan

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Ben Hoefnagels in January 2017 from a dealer in Zagora, Morocco.

Physical characteristics: A single stone (73.6 g) with a brownish weathered exterior and a fresh, mostly very dark gray interior with some whitish clasts.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular mineral fragments and sparse, fragmented glass spheres in a finer grained matrix containing some vesicles. Minerals are anorthite, olivine, pigeonite, ferropigeonite, fayalite, kamacite, Al-Cr-Fe-Mg spinel, zircon and minor barite. The specimen is crosscut by some glass-rich shock veins.

Geochemistry: Olivine (Fa15.5-50.5, FeO/MnO = 75-91, N = 4), pigeonite (Fs25.5-35.2Wo10.6-18.8, FeO/MnO = 58-69, N = 4), ferropigeonite (Fs63.2Wo24.4, FeO/MnO = 72), anorthite (An93.9-96.6Or0.3, N = 2).

Classification: Lunar (feldspathic regolith breccia).

Specimens: 15.1 g including a polished endcut and one polished mount at UWB; remainder with Mr. B. Hoefnagels.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2017 Jan
Mass (g):73.6
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):15.5-50.5
Ferrosilite (mol%):25.5-35.2; 63.2
Wollastonite (mol%):10.6-18.8; 24.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):15.1
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:Work name BH043; 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 5838 approved meteorites from (Northwest Africa) (plus 2066 unapproved names)

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