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Northwest Africa 10968
Basic information Name: Northwest Africa 10968
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10968
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 899 g
Meteoritical Bulletin:  MB 106  (2018)  Diogenite-pm
Recommended:  Diogenite-pm    [explanation]

This is 1 of 50 approved meteorites classified as Diogenite-pm.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 3 Mar 2017
Writeup from MB 106:

Northwest Africa 10968 (NWA 10968)

(Northwest Africa)

Purchased: 2016

Classification: HED achondrite (Diogenite, polymict)

History: Purportedly found near Zaida, Morocco, and purchased by Ben Hoefnagels in April to June 2016 from a dealer in Ouarzazate, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed predominantly of angular grains of diogenitic orthopyroxene (exhibiting undulose extinction) with a few percent shocked basaltic eucrite clasts, plus accessory chromite, anorthitic plagioclase, Ti-chromite, troilite and taenite. Eucrite clasts consist of exsolved pigeonite, calcic plagioclase (polycrystalline and in part maskelynite), silica polymorph, chromite, ilmenite and Ni-free metal.

Geochemistry: Orthopyroxene (Fs25.1-27.1Wo1.9-1.2, FeO/MnO =24-30; rim Fs39.4Wo2.6, FeO/MnO = 31; N = 3), orthopyroxene host (Fs48.1Wo2.8, FeO/MnO = 29), clinopyroxene exsolution lamellae (Fs21.2-28.5Wo41.7-41.5, FeO/MnO = 22-26, N = 2), plagioclase (An83.6Or1.0; An93.1Or0.2).

Classification: Diogenite (polymict, shocked).

Specimens: 24.23 g including one polished thin section at UWB; remainder with Mr. B. Hoefnagels.

Data from:
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P 2016
Mass (g):899
Shock stage:high
Weathering grade:low
Ferrosilite (mol%):25.1-27.1; 48.1; 21.2-28.5
Wollastonite (mol%):1.9-1.2; 2.8; 41.7-41.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):24.23
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:BH011; submitted by A. Irving
   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)
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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     This is 1 of 8037 approved meteorites from (Northwest Africa) (plus 1947 unapproved names)

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