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| Northwest Africa 8396 | |||||||||||||||||||||
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| 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:  147.4 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 78 approved meteorites classified as Aubrite. [show all] Search for other: Achondrites, Aubrites, Enstatite achondrites, and Enstatite-rich meteorites | ||||||||||||||||||||
| Comments: | Approved 29 May 2014 | ||||||||||||||||||||
| Writeup |
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: MB103 Table 0 Line 0: |
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| 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) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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| Catalogs: |
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| 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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Geography:
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Statistics: This is 1 of 265 approved meteorites from Western Sahara (plus 20 unapproved names) | ||||||||||||||||||||