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Northwest Africa 10838
Basic information Name: Northwest Africa 10838
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10838
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 298 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  L4
Recommended:  L4    [explanation]

This is 1 of 1709 approved meteorites (plus 24 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 24 Sep 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10838 (NWA 10838)

(Northwest Africa)

Purchased: 2016 Apr

Classification: Ordinary chondrite (L4)

History: Purchased by John Higgins in April 2016 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Closely-packed, well-formed chondrules (apparent diameter 500±200 μm) are set in a sparse matrix containing altered metal.

Geochemistry: Olivine (Fa22.0-22.1, N = 3), orthopyroxene (Fs5.2-19.0Wo0.3-2.9, N = 3), subcalcic augite (Fs13.4Wo34.8), augite (Fs13.8Wo39.3).

Classification: Ordinary chondrite (L4).

Specimens: 21.8 g including one polished thin section at UWB; remainder with Mr. J. Higgins.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2016 Apr
Mass (g):298
Pieces:4
Class:L4
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):22.0-22.1
Ferrosilite (mol%):5.2-19.0
Wollastonite (mol%):0.3-2.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.8
Type spec location:UWB
Main mass:J. Higgins
Comments:JH16-7; 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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