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Northwest Africa 11245
Basic information Name: Northwest Africa 11245
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11245
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 1424 g
Meteoritical Bulletin:  MB 106  (2018)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 269 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 9 Jun 2017
Writeup from MB 106:

Northwest Africa 11245 (NWA 11245)

(Northwest Africa)

Purchased: 2016 Oct

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Eric Twelker in October 2016 from a dealer in Agadir, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Monomict breccia composed of clasts with intersertal texture. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, ilmenite, Ti-bearing chromite and troilite.

Geochemistry: Orthopyroxene host (Fs62.1-63.2Wo1.8-2.1, FeO/MnO = 31-38, N = 3), clinopyroxene exsolution lamellae (Fs25.4-27.4Wo45.2-43.6, FeO/MnO = 34-37, N =3), plagioclase (An89.0-90.6Or0.9-1.2, N = 2).

Classification: Eucrite (monomict breccia).

Specimens: 22 g plus one polished thin section at UWB; remainder with Mr. E. Twelker.

Data from:
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2016 Oct
Mass (g):1424
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):62.1-63.2; 25.4-27.4
Wollastonite (mol%):1.8-2.1; 45.2-43.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):22
Type spec location:UWB
Main mass:E. Twelker
Comments:Work name ET17-1; 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)
Twelker: Eric Twelker, P.O. Box 844, Port Townsend, WA 98368, United States; Website (private address; updated 1 Dec 2014)
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 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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