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Northwest Africa 13239 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13239 This is an OFFICIAL meteorite name. Abbreviation: NWA 13239 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 287 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 658 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 28 Mar 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13239 (NWA 13239) (Northwest Africa) Purchased: 2019 Aug Classification: Ureilite History: Purchased by Mbark Arjdal in August 2019 from a dealer in Timbuktu, Mali. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Aggregate (mean grainsize 1.2 mm) of olivine with thick opaque, reduced magnesian rims (~75 vol.%), pigeonite (~25 vol.%) and accessory bladed grains of graphite. Geochemistry: Olivine (cores Fa21.3-21.7, N = 3; rims Fa3.0-3.2, N = 2), pigeonite (Fs10.5-18.1Wo6.5-14.0, N = 4). Classification: Ureilite. Specimens: 25.0 g including one polished thin section at UWB; remainder with Mr. M. Arjdal. | ||||||||||||||||||||||||||||||
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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) |
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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 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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