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Northwest Africa 13508 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13508 This is an OFFICIAL meteorite name. Abbreviation: NWA 13508 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: 1075 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 658 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 16 Jan 2021 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 13508 (NWA 13508) (Northwest Africa) Purchased: 2020 Jun Classification: Ureilite History: Purchased by Sun-Chung Yang and Juan Chen in June 2020 from an Algerian dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Protogranular texture with some preferred orientation of non-equidimensional grains. Composed predominantly of olivine (~75 vol.%) accompanied by both pigeonite and augite plus accessory graphite and altered kamacite (enclosing small grains of Cr-troilite, daubreelite and schreibersite). Olivine grains have relatively narrow reduced rims with blebby Fe metal, and some grains contain uncommon spherules of chromite. Geochemistry: Olivine (cores Fa18.6±0.1, N = 3; rims Fa6.3-13.4, N = 3), pigeonite (Fs15.7±0.1Wo9.8±0.1, N = 4), augite (Fs9.6±0.1Wo35.7±0.1, N = 4). Classification: Ureilite. Specimens: 20.8 g including one polished thin section at UWB; remainder with Mr. S.-C. Yang and Mr. J. Chen. | ||||||||||||||||||||||||||||||
Data from: MB110 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 Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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