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Northwest Africa 11342
Basic information Name: Northwest Africa 11342
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11342
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 712 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 449 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 1 Jul 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11342 (NWA 11342)

(Northwest Africa)

Purchased: 2017

Classification: HED achondrite (Diogenite)

History: A single stone was purchased by Aerolite Meteorites from a Moroccan meteorite dealer in February, 2017.

Physical characteristics: Single stone, weathered, sandblasted exterior. A saw cut reveals a yellow-orange interior with medium to fine-grained crystals.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows dominant pyroxene grains up to 2 mm, ubiquitous olivine was also observed. Opaques include troilite and oxidized iron.

Geochemistry: (C. Agee and B. Ha, UNM) Low-Ca pyroxene Fs20.6±0.7Wo2.4±0.2, Fe/Mn=28±1, n=5; olivine Fa23.7±0.2, Fe/Mn=49±1, n=5.

Classification: Olivine-bearing diogenite

Specimens: 29.2 g including a probe mount on deposit at UNM, Aerolite Meteorites holds the main mass.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2017
Mass (g):712
Pieces:1
Class:Diogenite
Shock stage:moderate
Weathering grade:moderate
Fayalite (mol%):23.7±0.2
Ferrosilite (mol%):20.6±0.7
Wollastonite (mol%):2.4±0.2
Classifier:C. Agee, UNM
Type spec mass (g):29.2
Type spec location:UNM
Main mass:Aerolite Meteorites Inc.
Comments:AE-9; submitted by C. Agee
Institutions
   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)
Catalogs:
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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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names)

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