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Northwest Africa 13728 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13728 This is an OFFICIAL meteorite name. Abbreviation: NWA 13728 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 61 approved meteorites classified as Pallasite. [show all] Search for other: Metal-rich meteorites, Pallasites | ||||||||||||||||||||||||||
Comments: | Approved 21 Feb 2021 | ||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Northwest Africa 13728 (NWA 13728) (Northwest Africa) Purchased: 2020 Sep Classification: Pallasite History: Purchased by Shun-Chung Yang and Juan Chen in September 2020 from a dealer in Tindouf, Algeria. Physical characteristics: The material consists of numerous small (up to 1 cm) olivine-rich, metal-bearing fragments (total weight 40 g). Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Composed predominantly of subequal amounts of olivine (grainsize up to 2.2 mm) and altered metal (kamacite plus taenite) with minor accessory chromite. Geochemistry: Olivine (Fa12.5-12.6, FeO/MnO = 44-49, N = 4), kamacite (Ni = 6.9 wt.%), taenite (Ni = 21.6 wt.%). Classification: Pallasite. Specimens: 8.3 g including a polished mount 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, 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. 110, in preparation (2021)
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Geography: |
Statistics: This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names) |