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Northwest Africa 1882 | |||||||||||||||||||
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Basic information | Name: Northwest Africa 1882 This is an OFFICIAL meteorite name. Abbreviation: NWA 1882 Observed fall: No Year found: 2002 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||
Classification history: |
This is 1 of 9 approved meteorites classified as Mesosiderite-C. [show all] Search for other: Class C mesosiderites, Mesosiderites, and Metal-rich meteorites | ||||||||||||||||||
Writeup![]() |
Writeup from MB 88:
Northwest Africa 1882 Western Sahara Found 2003 Mesosiderite Many stones totaling 4438 g were found in 2003 by an anonymous finder in Western Sahara. Classification and mineralogy (A. Greshake, MNB): several stones are partially covered by fusion crust; contains up to several cm sized metal nodules; metal is mostly kamacite with some taenite; silicate portion is dominantly Mg-rich pyroxene, Fs26Wo3 (Fs23.4-28.7Wo2-4.7) and plagioclase, An92 (An90.1-94.4); accessories include silica, chromite, and phosphate; oxygen isotopic composition (R. Clayton and T. Mayeda, UChi): δ18O = 3.36, δ17O = 1.42 ‰.; low degree of shock; low to medium degree of weathering. Specimens: type specimen 22 g plus one polished thin section, MNB; main mass, S. Ralew, Germany. | ||||||||||||||||||
Data from: MB88 Table 4 Line 49: |
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Plots: | O isotopes: | ||||||||||||||||||
Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) UChi: University of Chicago, Chicago, IL 60637, United States (institutional address; updated 28 Feb 2011) Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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Geography: |
Statistics: This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names) |