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Northwest Africa 8344
Basic information Name: Northwest Africa 8344
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8344
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 1496 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 230 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 27 Apr 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8344 (NWA 8344)

(Northwest Africa)

Purchased: 2013

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Brahim Tahiri from a Moroccan hunter and sent to his partner Sean Tutorow for classification, 2013.

Physical characteristics: Three stones with identical appearance (1380.27 g, 75.23 g, 40.20 g), irregular dark brown weathered exterior. Saw cut reveals breccia with white clasts up to 1 cm set in a dark matrix, vesicles up to 4 mm observed.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows brecciated basaltic eucrite clasts, also fragmental to cataclastic fine-grained domains, numerous shock melt veins up to 500 μm wide. Many pyroxenes show exsolution lamellae. Accessory troilite, chromite, ilmenite, and silica.

Geochemistry: (C. Agee and N. Muttik, UNM) Low-Ca pyroxene Fs60.6±1.4Wo3.4±1.2, Fe/Mn=32±1, n=17; augite Fs31.4±5.1Wo38.2±5.7, Fe/Mn=32±2, n=10; plagioclase An89.3±1.8Ab10.0±1.6Or0.8±0.5, n=8. Shock melt veins SiO2=47.14±0.19, CaO/Al2O3=0.62±0.02 (wt%), Mg#=37.5±1.2, Fe/Mn=34±2, n=8.

Classification: Achondrite (monomict eucrite).

Specimens: 21.2 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2013
Mass (g):1495.7
Pieces:3
Class:Eucrite-mmict
Ferrosilite (mol%):60.6±1.4, 31.4±5.
Wollastonite (mol%):3.4±1.2, 38.2±5.7
Classifier:C. Agee, UNM
Type spec mass (g):21.2
Type spec location:UNM
Main mass:Sean Tutorow
Comments:Field name G512; submitted by C. Agee, UNM
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 Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7101 approved meteorites from (Northwest Africa) (plus 2004 unapproved names)

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