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Northwest Africa 8031 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8031 This is an OFFICIAL meteorite name. Abbreviation: NWA 8031 Observed fall: No Year found: 2012 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 29 approved meteorites classified as L3.9. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 30 Dec 2013 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 102:
Northwest Africa 8031 (NWA 8031) (Northwest Africa) Purchased: 2012 Classification: Ordinary chondrite (L3.9) History: Purchased by Terry Boswell in 2012 from a dealer in Midelt, Morocco. Petrography: (A. Irving and S. Kuehner, UWS) Abundant well-formed, medium-sized (0.3-2.3 mm) chondrules and moderately abundant altered metal. Olivine, orthopyroxene, clinopyroxene, sodic plagioclase, chromite, altered kamacite and troilite. Geochemistry: Olivine (Fa24.2-25.5, N = 7), orthopyroxene (Fs2.7-21.5Wo0.3-1.7, N = 4), clinopyroxene (Fs8.5-8.3.3-43.8). Classification: Ordinary chondrite (L3.9). Although the olivine in this specimen is fairly well equilibrated, the orthopyroxenes are not. Specimens: 22.5 g and one polished thin section are at UWB. The remainder is held by Mr. T. Boswell. | ||||||||||||||||||||||||||||||
Data from: MB102 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) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |