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Northwest Africa 11033
Basic information Name: Northwest Africa 11033
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11033
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 35 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 26 Jan 2017
Writeup from MB 106:

Northwest Africa 11033 (NWA 11033)

(Northwest Africa)

Purchased: 2016 Jun

Classification: HED achondrite (Diogenite, polymict)

History: Purchased by Fabien Kuntz in June 2016 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of >90 vol.% angular diogenitic orthopyroxene clasts along with subordinate exsolved pigeonite, calcic plagioclase, olivine, silica polymorph and chromite in a finer grained matrix containing the same minerals plus troilite and Ni-free metal. Sparse eucritic clasts composed of intergrown low-Ca pyroxene, high-Ca pyroxene and calcic plagioclase are present.

Geochemistry: Diogenitic orthopyroxene (Fs23.7-23.8Wo2.0-1.8, FeO/MnO = 27-29, N = 3), orthopyroxene host (Fs29.5Wo1.6, FeO/MnO = 25), clionopyroxene exsolution lamella (Fs16.6Wo41.7, FeO/MnO = 20), low-Ca pyroxene in intergrowth (Fs58.4Wo5.5, FeO/MnO = 25), high-Ca pyroxene in intergrowth (Fs27.8Wo41.9, FeO/MnO = 26), olivine (Fa37.6-37.9, FeO/MnO = 46-47, N = 2), plagioclase (An89.8Or0.6; An93.4Or0.2).

Classification: Diogenite (polymict breccia).

Specimens: 9.49 g including one polished thin section at PSF; remainder with Kuntz.

Data from:
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2016 Jun
Mass (g):35.03
Shock stage:low
Weathering grade:low
Fayalite (mol%):37.6-37.9
Ferrosilite (mol%):23.7-23.8; 58.4; 27.8; 29.5; 16.6
Wollastonite (mol%):2.0-1.8; 5.5; 41.9; 1.6; 41.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):9.49
Type spec location:PSF
Main mass:F. Kuntz
Comments:K311; submitted by A. Irving
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
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 8136 approved meteorites from (Northwest Africa) (plus 1942 unapproved names)

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