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Northwest Africa 10179
Basic information Name: Northwest Africa 10179
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10179
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 61.9 g
Meteoritical Bulletin:  MB 104  (2015)  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 30 Jun 2015
Writeup from MB 104:

Northwest Africa 10179 (NWA 10179)

(Northwest Africa)

Purchased: 2013 Sep

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by John Curchin in September 2013 from a Moroccan dealer at the Denver Show.

Petrography: (A. Irving and S. Kuehner, UWS) Basaltic eucrite clasts and related crystalline debris occur in a finer-grained matrix, and all components have been overprinted by metamorphic recrystallization producing partially granoblastic textures. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, ilmenite, chromite and troilite.

Geochemistry: Host orthopyroxene (Fs59.6Wo3.3, FeO/MnO = 31) with exsolution lamellae of clinopyroxene (Fs27.0Wo42.5, FeO/MnO = 31). Host clinopyroxene (Fs26.8Wo42.7, FeO/MnO = 34) with exsolution lamellae of orthopyroxene (Fs59.4Wo4.5, FeO/MnO = 32).

Classification: Eucrite (recrystallized monomict breccia).

Specimens: 12.4 g including one polished thin section at UWB. The remainder is held by Mr. J. Curchin.

Data from:
  Table 0
  Line 0:
Place of purchase:Denver
Date:P 2013 Sep
Mass (g):61.9
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):59.4-59.6; 26.8-27.0
Wollastonite (mol%):4.5-3.3; 42.7-42.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):12.4
Type spec location:UWB
Main mass:J. Curchin
Comments:JC15-3; 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 Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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