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Northwest Africa 14174 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14174 This is an OFFICIAL meteorite name. Abbreviation: NWA 14174 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: 1470 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 104 approved meteorites classified as Eucrite-melt breccia. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 4 Sep 2021 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 14174 (NWA 14174) (Northwest Africa) Purchased: 2021 Apr Classification: HED achondrite (Eucrite, melt breccia) History: Purchased by Jesper Grønne in April 2021 from a Moroccan dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Monomict melt-breccia composed of microgabbroic eucrite clasts and related crystalline debris set in a sparsely vesicular melt rock matrix of parallel-grown pyroxene and calcic plagioclase with accessory silica polymorph, chromite (with variable Ti content), ilmenite and troilite. Pyroxene both in lithic clasts and the matrix is exsolved pigeonite containing discontinuous and deformed augite exsolution lamellae. Geochemistry: Low-Ca pyroxene host (Fs57.5-62.9Wo2.6-4.3, FeO/MnO = 31-34, N = 3), augite exsolution lamellae (Fs25.9-27.6Wo43.7-44.3, FeO/MnO = 29-32, N = 4), plagioclase (An89.1-91.0Or0.4-0.5, N = 3). Classification: Eucrite (monomict melt-breccia). Specimens: 23.7 g in the form of a polished endcut at UWB; remainder with Mr. J. Grønne. | ||||||||||||||||||||||||||||
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 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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