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Northwest Africa 11122
Basic information Name: Northwest Africa 11122
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11122
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 7.74 kg
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  L5
Recommended:  L5    [explanation]

This is 1 of 6528 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 17 Feb 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11122 (NWA 11122)

(Northwest Africa)

Purchased: 2016 Dec

Classification: Ordinary chondrite (L5)

History: Found in Mauritania in 2016, acquired by Rachid Chaoui, classified at UWS for PSF, and subsequently purchased by Bob Falls.

Petrography: (A. Irving and S. Kuehner, UWS) Sparse chondrules are set in a recrystallized matrix containing altered metal.

Geochemistry: Olivine (Fa24.8-25.4, N = 3), orthopyroxene (Fs20.9-21.0Wo1.2-1.3, N = 3), clinopyroxene (Fs6.5-8.4Wo46.1-44.5, N = 2).

Classification: Ordinary chondrite (L5).

Specimens: 77 g including one polished thin section at PSF; remainder with Mr. R. Chaoui.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Nouakchott, Mauritania
Date:P 2016 Dec
Mass (g):7739
Pieces:1
Class:L5
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):24.8-25.4
Ferrosilite (mol%):20.9-21.0
Wollastonite (mol%):1.2-1.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):77
Type spec location:PSF
Main mass:R. Falls
Comments:RC85.1; 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 Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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