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Northwest Africa 14274 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14274 This is an OFFICIAL meteorite name. Abbreviation: NWA 14274 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass: 220 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 658 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 6 Oct 2021 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 14274 (NWA 14274) Northwest Africa Purchased: 2017 Classification: Ureilite History: Purchased in Agadir, Morocco by Aziz Habibi in 2017 and subsequently acquired by Ziyao Wang in June 2021. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Extensively recrystallized and partially melted assemblage dominated by olivine (>90 vol.%) together with pigeonite, orthopyroxene and accessory altered kamacite, graphite, secondary calcite and gypsum. Olivine grains consist of very fine grained polycrystalline mosaics but retain reduced magnesian rims; pyroxene grains are not mosaicized but show some patchy textural features consistent with partial melting. Glasses of diverse composition (including Si-rich, NaMgAlSi-rich and FeSi-rich) are present. Geochemistry: Olivine (cores Fa15.2-22.2, N = 3; rims 12.0-13.0, N = 3), pigeonite (Fs5.0-14.2Wo5.6-10.6, N = 3), low-Ca pyroxene (Fs8.5-11.0Wo2.9-4.8, N = 3). Classification: Ureilite (dunitic, shock-melted). Specimens: 21.1 g including one polished thin section at UWB; remainder with WangZ. | ||||||||||||||||||||||||||||||
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) WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021) |
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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 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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