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Northwest Africa 11273
Basic information Name: Northwest Africa 11273
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11273
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 2.81 kg
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 157 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 13 Oct 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11273 (NWA 11273)

(Northwest Africa)

Purchased: 2017 Apr

Classification: Lunar meteorite (feldspathic breccia)

History: Material excavated from a site near Tindouf, Algeria was purchased by a consortium of collectors (Rob Wesel, Eric Twelker and Jason Phillips) in April 2017 from Moroccan dealers.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of mineral clasts of anorthite, olivine, exsolved pigeonite, pigeonite, augite, chromite, Ti-Cr-Fe spinel, kamacite, taenite and troilite in a finer grained matrix containing small vesicles and minor barite. Rare basalt clasts and glass fragments are also present.

Geochemistry: Olivine (Fa8.7-59.7, FeO/MnO = 89-111, N = 4), pigeonite (Fs28.8Wo11.2, FeO/MnO = 56), clinopyroxene host (Fs15.3Wo40.9, FeO/MnO = 44), orthopyroxene exsolution lamella (Fs34.0Wo2.7, FeO/MnO = 56), augite (Fs16.8Wo41.7, FeO/MnO = 62), plagioclase (An95.9-96.5Or0.2, N = 2).

Classification: Lunar (feldspathic regolith breccia).

Specimens: 37 g including one polished slice at UWB; remaining pieces shared by Mr. R. Wesel, Mr. E. Twelker and Mr. J. Phillips.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2017 Apr
Mass (g):2808
Pieces:many
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):8.7-59.7
Ferrosilite (mol%):28.8; 16.8
Wollastonite (mol%):11.2; 41.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):37
Type spec location:UWB
Main mass:R. Wesel/E. Twelker/J. Phillips
Comments:Work name RW17-2; 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)
Twelker: Eric Twelker, P.O. Box 844, Port Townsend, WA 98368, United States; Website (private address; updated 1 Dec 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 106, in preparation (2017)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Alessandro Takeda   
DCOM   
Dominik Stoeckli   
Lucian Cojocaru   
Marcelo Adorna Fernandes   
MCMcanarias      
Rodrigo Guerra            
Wang Ziyao      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6436 approved meteorites from (Northwest Africa) (plus 2025 unapproved names)

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