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Northwest Africa 10979
Basic information Name: Northwest Africa 10979
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10979
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 132 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 238 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 17 Dec 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10979 (NWA 10979)

(Northwest Africa)

Purchased: 2016 Jul

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Ben Hoefnagels in July 2016 from a dealer in Marrakech, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Monomict breccia composed of basaltic eucrite clasts (with intersertal texture) in a sparse matrix of related debris. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, ilmenite, troilite, Ni-free metal and minor barite.

Geochemistry: Orthopyroxene host (Fs56.6-57.1Wo1.8-2.1, FeO/MnO = 31-34, N = 3), clinopyroxene exsolution lamellae (Fs23.1-24.0Wo43.9-44.36, FeO/MnO = 28-30, N = 2), plagioclase (An81.2-85.2Or1.2-0.5, N = 2).

Classification: Eucrite (monomict breccia).

Specimens: 20.1 g including one polished thin section at UWB; remainder with Mr. B. Hoefnagels.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Marrakech
Date:P 2016 Jul
Mass (g):132
Pieces:1
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):56.6-57.1; 23.1-24.0
Wollastonite (mol%):2.1-1.8; 43.9-44.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.1
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:BH028; submitted by A. Irving
Institutions
   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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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