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Northwest Africa 11333 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11333 This is an OFFICIAL meteorite name. Abbreviation: NWA 11333 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass: 56 kg | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 660 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 21 Mar 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 11333 (NWA 11333) (Northwest Africa) Purchased: 2017 Mar Classification: Ureilite History: Purchased in Foum Zguid, Morocco by Mohamed Aid in March 2017. Physical characteristics: Large (56 kg) specimen lacking fusion crust. Petrography: (A. Irving and S. Kuehner, UWS) Protogranular assemblage of olivine (~65 vol.%, with reduced metal-bearing rims) and twinned pigeonite (~35 vol.%). No carbon phases were detected. Geochemistry: Olivine (cores Fa14.4-14.5; rim Fa9.1; N = 3), pigeonite (Fs12.2-12.3Wo8.1-8.0, N = 2). Mafic silicate compositions are unusually magnesian in comparison to the majority of ureilite specimens. Classification: Ureilite. Specimens: 25.2 g including one polished thin section at UWB; remainder with M. Aid. Writeup from MB 109: Northwest Africa 11333 (NWA 11333) (Northwest Africa) Purchased: 2017 Mar Classification: Ureilite History: Purchased in Foum Zguid, Morocco, by Mohamed Aid in March 2017. Physical characteristics: Large (56 kg) specimen lacking fusion crust. Petrography: (A. Irving and S. Kuehner, UWS) Protogranular assemblage of olivine (~65 vol.%, with reduced metal-bearing rims) and twinned pigeonite (~35 vol.%). No carbon phases were detected. Geochemistry: Olivine (cores Fa14.4-14.5; rim Fa9.1; N = 3), pigeonite (Fs12.2-12.3Wo8.1-8.0, N = 2). Mafic silicate compositions are unusually magnesian in comparison to the majority of ureilite specimens. Classification: Ureilite. Specimens: 25.2 g including one polished thin section at UWB; remainder with M. Aid. | ||||||||||||||||||||||||||||||
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) 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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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