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Northwest Africa 15789 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15789 This is an OFFICIAL meteorite name. Abbreviation: NWA 15789 Observed fall: No Year found: 2023 Country: Mali Mass: 1721 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 2060 approved meteorites (plus 5 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 4 Mar 2023 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 112:
Northwest Africa 15789 (NWA 15789) Mali Purchased: 2023 Jan Classification: Ordinary chondrite (L4) History: Found in Mali and purchased by Preston Allen in January 2023 from a dealer in Warren, Ohio, who had acquired the stone from a Saharawi source. Petrography: A. Irving, UWS, and J. Boesenberg, BrownU) Well-formed chondrules containing devitrified glass are set in a relatively coarse grained matrix containing stained kamacite, taenite, troilite and chromite, but no plagioclase. Geochemistry: Olivine (Fa24.9±1.3, range Fa22.0-26.2, N = 13), low-Ca pyroxene (Fs18.4±0.6Wo0.4±0.1, range Fs1.5-21.7Wo0.2-0.7, N = 11). Classification: Ordinary chondrite (L4). Specimens: 46.4 g including one polished thin section at UWB; remainder with Mr. P. Allen. | ||||||||||||||||||||||||||||||
Data from: MB112 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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Geography: |
Statistics: This is 1 of 112 approved meteorites from Mali (plus 3 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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