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Northwest Africa 11128
Basic information Name: Northwest Africa 11128
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11128
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 8.08 kg
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  H4
Recommended:  H4    [explanation]

This is 1 of 6038 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 17 Feb 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11128 (NWA 11128)

(Northwest Africa)

Purchased: 2016 Jul

Classification: Ordinary chondrite (H4)

History: Purportedly found in April 2016 near Tifariti, Morocco by a soldier, and subsequently purchased by Mbark Arjdal in July 2016 from a dealer in Smara.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, relatively small chondrules are set in a recrystallized matrix containing altered metal.

Geochemistry: Olivine (Fa19.3-20.3, N = 3), orthopyroxene (Fs16.4-16.7Wo1.3-1.6, N = 3), clinopyroxene (Fs5.9-6.3Wo45.8-45.6, N = 2).

Classification: Ordinary chondrite (H4).

Specimens: 168 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Smara
Date:P 2016 Jul
Mass (g):8078
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):19.5-20.3
Ferrosilite (mol%):16.4-16.7
Wollastonite (mol%):1.2-1.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):168
Type spec location:UWB
Main mass:M. Arjdal
Comments:Arj16-8; 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: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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