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Northwest Africa 8625 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8625 This is an OFFICIAL meteorite name. Abbreviation: NWA 8625 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 3 approved meteorites classified as Mesosiderite-A. [show all] Search for other: Class A mesosiderites, Mesosiderites, and Metal-rich meteorites | ||||||||||||||||||||||||||||
Comments: | Approved 25 Nov 2014 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 103:
Northwest Africa 8625 (NWA 8625) (Northwest Africa) Purchased: 2014 May 8 Classification: Mesosiderite (group A) History: Purchased in Erfoud May 8, 2014. Physical characteristics: Many rusted stones without fusion crust. Cut surface reveals a dark interior with abundant mm-sized metal grains. Petrography: Coarse crystalline rock with recrystallized texture evidenced by triple junctions and lobate silicates, and subhedral troilite and metal. Pyroxene and plagioclase up to 2.5 mm, troilite and metal to mm. Modal abundances (point counting, N=394): pyroxene 51%, plagioclase 27%, troilite 11%, metal and its weathering products 10%. Geochemistry: Orthopyroxene Fs30.0±0.6Wo3.4±0.2, FeO/MnO=27.8 (N=3). Plagioclase An93.8Ab5.9Or0.3 (N=3). Magnetic susceptibility log χ = 5.27 (χ in 10-9 m3/kg) Classification: Mesosiderite-A Specimens: 24 g and a polished section in CEREGE. Main mass with P. Thomas | ||||||||||||||||||||||||||||
Data from: MB103 Table 0 Line 0: |
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Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 29 Oct 2018) |
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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 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names) |