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Northwest Africa 13203 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13203 This is an OFFICIAL meteorite name. Abbreviation: NWA 13203 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 1709 approved meteorites (plus 4 unapproved names) classified as L4. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 16 Feb 2020 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Northwest Africa 13203 (NWA 13203) (Northwest Africa) Purchased: 2020 Jan Classification: Ordinary chondrite (L4) History: Purchased by Darryl Pitt in January 2020 from a Moroccan dealer living in Spain. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed chondrules are set in a relatively coarse-grained, recrystallized matrix containing altered kamacite, taenite, troilite, Ti-chromite, merrillite and chlorapatite. Geochemistry: Olivine (Fa24.6±0.2, range Fa24.4-24.8, N = 5), low-Ca pyroxene (Fs20.6±0.2Wo1.7±0.3, range Fs20.3-20.9Wo1.5-1.8, N = 5), augite (Fs7.5±0.6Wo45.2±1.0, range Fs6.9-8.0Wo46.3-44.5, N = 3), plagioclase (Ab83.6An10.3Or6.1). Classification: Ordinary chondrite (L4). Specimens: 26.4 g including one polished thin section at UWB; remainder with DPitt. | ||||||||||||||||||||||||||||||
Data from: MB109 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names) |