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Northwest Africa 10882 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10882 This is an OFFICIAL meteorite name. Abbreviation: NWA 10882 Observed fall: No Year found: 2016 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 5 approved meteorites classified as Mesosiderite-A2. [show all] Search for other: Class A mesosiderites, Mesosiderites, and Metal-rich meteorites | ||||||||||||||||||||||||||||
Comments: | Approved 21 Nov 2016 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 105:
Northwest Africa 10882 (NWA 10882) (Northwest Africa) Purchased: 2016 Classification: Mesosiderite (group A2) History: Purchased by Steve Arnold in May 2106 from a meteorite dealer in Morocco. Physical characteristics: Single mass. Saw cut shows a stony-iron breccia with silicate clasts up to ~1 cm, metal veins and nodules up to ~1 cm, however many domains are fine-grained mixtures of metal and silicate. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows approximately a 50-50 mix of metal/sulfide and silicate. Most silicate clasts have pyroxene and plagioclase present, and are approximately 70% "basaltic" pyroxenes (pigeonite and augite) and 30% anorthitic plagioclase. The dominant metal phase is kamacite (~90%), with inclusions of taenite (~10%). Geochemistry: (C. Agee and M. Spilde, UNM) Pigeonite Fs46.2±6.7Wo11.1±4.8, Fe/Mn=31±3, n=8; augite Fs28.7±0.6Wo36.9±0.3, Fe/Mn=30±1, n=2; plagioclase An93.3, n=7. Classification: Mesosiderite-A2. "A" based on plagioclase abundance, basaltic clast abundance, and pyroxene compositions; "2" based on moderate recrystallization of breccia clasts. Specimens: 20.4 g including a probe mount on deposit at UNM, Steve Arnold holds the main mass | ||||||||||||||||||||||||||||
Data from: MB105 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |