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Northwest Africa 11068
Basic information Name: Northwest Africa 11068
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11068
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 295 g
Meteoritical Bulletin:  MB 106  (2018)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 272 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 14 Feb 2017
Writeup from MB 106:

Northwest Africa 11068 (NWA 11068)

(Northwest Africa)

Purchased: 2016 Sep

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Bob Falls in September 2016 from a Moroccan dealer at the Denver Show.

Petrography: (A. Irving and S. Kuehner, UWS) Monomict breccia composed of relatively coarse (up to 3 mm), angular grains of predominantly exsolved pigeonite and calcic plagioclase with accessory unexsolved orthopyroxene, unexsolved clinopyroxene, Ti-chromite and troilite. The specimen appears to represent a disaggregated gabbroic eucrite.

Geochemistry: Orthopyroxene host (Fs43.6Wo2.7, FeO/MnO = 29), clinopyroxene exsolution lamellae (Fs20.0Wo40.2, FeO/MnO = 25), orthopyroxene (Fs35.0Wo4.5, FeO/MnO = 30), clinopyroxene (Fs17.2Wo42.8, FeO/MnO = 26), plagioclase (An89.6-90.0Or0.5, N = 2).

Classification: Eucrite (monomict gabbroic breccia).

Specimens: 21.6 g including one polished thin section at UWB; remainder with Mr. R. Falls.

Data from:
  Table 0
  Line 0:
Place of purchase:Denver
Date:P 2016 Sep
Mass (g):295.1
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):43.6; 20.0; 35.0; 17.2
Wollastonite (mol%):2.7; 40.2; 4.5; 42.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.6
Type spec location:UWB
Main mass:R. Falls
Comments:BF16-14; 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 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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