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Northwest Africa 8391 | |||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8391 This is an OFFICIAL meteorite name. Abbreviation: NWA 8391 Observed fall: No Year found: 2014 Country: Western Sahara Mass: ![]() | ||||||||||||||||||||||||
Classification history: |
This is 1 of 6147 approved meteorites (plus 5 unapproved names) classified as H6. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||
Comments: | Approved 14 May 2014 | ||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 103:
Northwest Africa 8391 (NWA 8391) Western Sahara Found: 2014 Classification: Ordinary chondrite (H6) History: Found by a meteorite hunter on a January/February, 2014, expedition in an area just northwest of the Free Zone in Western Sahara, and subsequently purchased by Darryl Pitt. Physical characteristics: Single stone with dark-brown, weathered, fusion-crusted exterior. Saw cut reveals abundant metal/sulfide grains set in a dark brown matrix. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows equilibrated chondrules, vesicular fusion crust, plagioclase grain size up to 200 μm. Kamacite, troilite, chromite and apatite. Geochemistry: (C. Agee and N. Muttik, UNM) Olivine Fa19.3±0.4, Fe/Mn=39±2, n=7; low-Ca pyroxene Fs16.4±0.2Wo1.4±0.3, Fe/Mn=22±1, n=7. Classification: Ordinary chondrite (H6). Specimens: 25.2 g including a probe mount on deposit at UNM, Darryl Pitt 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) |
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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:![]() |
Statistics: This is 1 of 224 approved meteorites from Western Sahara (plus 19 unapproved names) |