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Northwest Africa 13912 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13912 This is an OFFICIAL meteorite name. Abbreviation: NWA 13912 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 263 approved meteorites classified as Mesosiderite. [show all] Search for other: Mesosiderites, Metal-rich meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 25 Apr 2021 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Northwest Africa 13912 (NWA 13912) (Northwest Africa) Purchased: 2020 Dec Classification: Mesosiderite History: Purchased by Luc Labenne in Decemer 2020 from a Moroccan dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) The specimen is composed predominantly of zoned orthopyroxene, anorthite and metal (~45 vol.%, kamacite+taenite) with accessory augite, olivine, silica polymorph, merrillite and troilite. Geochemistry: Orthopyroxene (Fs22.3-32.3Wo1.5-3.9, FeO/MnO = 23-30, N = 5), augite (Fs18.7-18.9Wo37.9-40.3, FeO/MnO = 18-20, N = 2), olivine (Fa34.4-37.1, FeO/MnO = 33-39, N = 2), anorthite (An91.0-96.1Or0.2-0.0, N = 2). Classification: Mesosiderite. Specimens: 20.2 g in the form of a polished endcut at UWB; remainder with Mr. L. Labenne. | ||||||||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: |
Statistics: This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names) |