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Northwest Africa 8396
Basic information Name: Northwest Africa 8396
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8396
Observed fall: No
Year found: 2014
Country: Western Sahara
Mass:help 147.4 g
Meteoritical Bulletin:  MB 103  (2014)  Aubrite
Recommended:  Aubrite    [explanation]

This is 1 of 76 approved meteorites classified as Aubrite.   [show all]
Search for other: Achondrites, Aubrites, Enstatite achondrites, and Enstatite-rich meteorites
Comments: Approved 29 May 2014
Writeup from MB 103:

Northwest Africa 8396 (NWA 8396)

Western Sahara

Found: 2014

Classification: Enstatite achondrite (Aubrite)

History: Found by a meteorite hunter on a 2014 Jan-Feb expedition in Western Sahara, and subsequently purchased by Darryl Pitt.

Physical characteristics: Single stone with dark brown weathered exterior. Saw cut reveals fine-grained polycrystalline texture, small weathering veins present.

Petrography: (C. Agee, UNM) Examination of a polished mount shows approximately 80% enstatite grains (50-200 μm), 5% feldspar (10-50 μm) in enstatite triple junctions and on grain boundaries, 10-15% metal and sulfide. Many weathering veins, about 50% of the metal is oxidized.

Geochemistry: (C. Agee and N. Muttik, UNM) Enstatite Fs0.7±0.3Wo1.4±0.0, n=18; plagioclase An15.4±0.5Ab80.5±0.2Or4.1±0.3, n=2; potassium feldspar An0.0±0.0Ab5.6±0.4Or94.4±0.4, n=2; kamacite Ni=5.84±0.57, Si=1.10±0.09, Co=0.37±0.06 (wt%), n=5; troilite with Cr=0.72±0.09 (wt%), n=5.

Classification: Achondrite (aubrite)

Specimens: 23.08 g including a probe mount on deposit at UNM, DPitt holds the main mass.

Data from:
  Table 0
  Line 0:
Mass (g):147.4
Weathering grade:moderate
Classifier:C. Agee, UNM
Type spec mass (g):23.08
Type spec location:UNM
Main mass:D. Pitt
Comments:Field name MAC 0015; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Western Sahara

     This is 1 of 259 approved meteorites from Western Sahara (plus 20 unapproved names)

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