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Northwest Africa 11267
Basic information Name: Northwest Africa 11267
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11267
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 62 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Eucrite-unbr
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 92 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 28 Jun 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11267 (NWA 11267)

(Northwest Africa)

Purchased: 2016 Aug

Classification: HED achondrite (Eucrite, unbrecciated)

History: Purchased by Ben Hoefnagels in August 2016 from a dealer in Ouarzazate, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Intersertal texture, with some localized variations in grainsize. Minerals are exsolved pigeonite, maskelynite, silica polymorph, ilmenite, chromite, troilite and minor calcite.

Geochemistry: Orthopyroxene host (Fs58.9-59.9Wo1.9-1.8, FeO/MnO = 33-35, N = 3), clinopyroxene exsolution lamellae (Fs26.1-27.9Wo43.1-40.7, FeO/MnO = 30-33, N = 2), maskelynite (An84.2-84.3Or0.6, N = 2).

Classification: Eucrite (unbrecciated, intersertal, highly shocked).

Specimens: 12.6 g including one polished thin section at UWB; remainder with Mr. B. Hoefnagels.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P 2016 Aug
Mass (g):62
Pieces:2
Class:Eucrite-unbr
Shock stage:high
Weathering grade:low
Ferrosilite (mol%):58.9-59.9; 26.1-27.9
Wollastonite (mol%):1.9-1.8; 43.1-40.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):12.6
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:Work name BH033; 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.
Find references in NASA ADS:
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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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