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Northwest Africa 11341
Basic information Name: Northwest Africa 11341
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11341
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 240 g
Meteoritical Bulletin:  MB 106  (2018)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 379 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 28 Jun 2017
Writeup from MB 106:

Northwest Africa 11341 (NWA 11341)

(Northwest Africa)

Purchased: 2016

Classification: HED achondrite (Eucrite, polymict)

History: Purchased by Dustin Dickens in Morocco, January 2016.

Physical characteristics: Seven identical appearing stones with weathered exteriors. Saw cuts show a breccia with black shock melt domains, a few vesicles were observed.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows fragmental breccia of basaltic clasts, feldspars clasts, pyroxene clasts, and vesicular shock melt pockets. Accessory silica, ilmenite and chromite are present.

Geochemistry: (C. Agee and B. Ha, UNM) Diogenitic pyroxene Fs22.6Wo2.1, Fe/Mn=31, n=1; cumulate eucritic pyroxene Fs35.1±2.9Wo5.3±2.6, Fe/Mn=29±2, n=4; basaltic eucritic pyroxene Fs50.2±4.5Wo8.3±4.3, Fe/Mn=30±1, n=7; basaltic sub-calcic augite Fs37.8Wo23.5, Fe/Mn=29, n=1; plagioclase An92±1.9, n=9.

Classification: Polymict eucrite based on the volume percent lithologies: ~62% basaltic eucrite, 31% cumulate eucrite, and ~8% diogenite.

Specimens: 20.0 g including a probe mount on deposit at UNM, Dustin Dickens holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016
Mass (g):240
Shock stage:high
Weathering grade:moderate
Ferrosilite (mol%):22.6, 35.1±2.9, 50.2±4.5
Wollastonite (mol%):2.1, 5.3±2.6, 8.3±4.3
Classifier:C. Agee, UNM
Type spec mass (g):20
Type spec location:UNM
Main mass:Dustin Dickens
Comments:DD-12; submitted by C. Agee, UNM
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
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 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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