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Northwest Africa 12417 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12417 This is an OFFICIAL meteorite name. Abbreviation: NWA 12417 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass: 1400 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 660 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 27 Jul 2019 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 108:
Northwest Africa 12417 (NWA 12417) (Northwest Africa) Purchased: 2018 Aug Classification: Ureilite History: Puchased in Rabat, Morocco, by Adam Aaronson in August 2018. Petrography: (A. Irving and S. Kuehner, UWS) Protogranular aggregate of olivine (~75 vol.%) and pigeonite (~25 vol.%) with minor secondary calcite. Olivine exhibits reduced magnesian, Fe metal-bearing rims. We did not observe any graphite either optically or in BSE images (despite a search for it), and this specimen is not sufficiently hard to contain microdiamond. Geochemistry: Olivine (cores Fa19.8-20.1; rim Fa6.4; N = 3), pigeonite (Fs16.6-16.7Wo9.7-9.6, N = 2), low-Ca pyroxene (Fs14.0Wo4.1). Classification: Ureilite. Specimens: Type specimen divided between UWB (9 g) and ROM (12 g). One polished thin section at UWB. Remainder with DGregory. | ||||||||||||||||||||||||||||||
Data from: MB108 Table 0 Line 0: |
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Institutions and collections |
ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 2011) 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) Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010) DGregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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