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Northwest Africa 11236
Basic information Name: Northwest Africa 11236
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11236
Observed fall: No
Year found: 2014
Country: Mauritania
Mass:help 2.36 kg
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  H4-6
Recommended:  H4-6    [explanation]

This is 1 of 100 approved meteorites classified as H4-6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 13 Oct 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11236 (NWA 11236)

Mauritania

Purchased: 2014 Dec

Classification: Ordinary chondrite (H4-6)

History: Purportedly found in 2014 near Tidjikja, Mauritania, and purchased by Jesper Grønne in December 2014 from a dealer in Agadir, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia consisting of angular ordinary chondrite clasts of types 3/4 to 6 set in a finer-grained matrix containing relatively abundant altered metal.

Geochemistry: Olivine (Fa17.3-20.0, N = 4), orthopyroxene (Fs7.6-18.6Wo3.4-1.1, N = 3), clinopyroxene (Fs6.0-6.5Wo45.9-45.6, N = 2).

Classification: Ordinary chondrite (H4-6 breccia).

Specimens: 20.0 g including one polished slice at UWB; remainder with Mr. J. Groenne.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2014 Dec
Mass (g):2360
Pieces:1
Class:H4-6
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):17.3-20.0
Ferrosilite (mol%):7.6-18.6
Wollastonite (mol%):3.4-1.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWB
Main mass:J. Grønne
Comments:Work name JG17-1; 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 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:

Mauritania
Coordinates:Unknown.

Statistics:
     This is 1 of 145 approved meteorites from Mauritania (plus 1 unapproved name) (plus 2 impact craters)

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