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Northwest Africa 11848
Basic information Name: Northwest Africa 11848
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11848
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 2.06 kg
Classification
  history:
Recommended:  Lodranite    [explanation]

This is 1 of 78 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 4 Jul 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11848 (NWA 11848)

(Northwest Africa)

Purchased: 2018 Jan

Classification: Primitive achondrite (Lodranite)

History: Purchased by Rachid Chaoui in January 2018 from a dealer in Nouadhibou, Mauritania.

Petrography: (A. Irving and S. Kuehner, UWS) Orthopyroxene-rich breccia composed of large grains (up to 6 mm) of low-Ca pyroxene (some exhibiting irregular exsolution lamellae) and orthopyroxenite lithic clasts in a relatively coarse grained matrix of orthopyroxene with accessory clinopyroxene, olivine, chromite, troilite and altered kamacite. Some secondary goethite veinlets are present.

Geochemistry: Orthopyroxene (Fs9.9-10.5Wo1.5-2.7, FeO/MnO = 15-16, N = 3), clinopyroxene (Fs4.2-4.8Wo44.4-41.4, FeO/MnO = 10-12, N = 2), olivine (Fa10.7-10.8, FeO/MnO = 25-26, N = 2).

Classification: Lodranite (pyroxenitic breccia).

Specimens: 28.8 g including one polished thin section at UWB; remainder with Mr. R. Chaoui.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2018 Jan
Mass (g):2064
Pieces:1
Class:Lodranite
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):10.7-10.8
Ferrosilite (mol%):9.9-10.5
Wollastonite (mol%):1.5-2.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):28.8
Type spec location:UWB
Main mass:R. Chaoui
Comments:Work name RC99.2; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6506 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

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