Meteoritical Bulletin: Entry for Northwest Africa 10979

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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: 132 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	Eucrite-mmict
Recommended:			Eucrite-mmict [explanation]

This is 1 of 280 approved meteorites classified as Eucrite-mmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 17 Dec 2016

Writeup

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 (Fs_56.6-57.1Wo_1.8-2.1, FeO/MnO = 31-34, N = 3), clinopyroxene exsolution lamellae (Fs_23.1-24.0Wo_43.9-44.36, FeO/MnO = 28-30, N = 2), plagioclase (An_81.2-85.2Or_1.2-0.5, 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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