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Northwest Africa 10971 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10971 This is an OFFICIAL meteorite name. Abbreviation: NWA 10971 Observed fall: No Year found: 2016 Country: (Northwest Africa) Mass: 2.03 kg | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 280 approved meteorites classified as Eucrite-mmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 17 Dec 2016 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Northwest Africa 10971 (NWA 10971) (Northwest Africa) Purchased: 2016 May Classification: HED achondrite (Eucrite, monomict) History: Purchased by Ben Hoefnagels in May 2016 from a dealer in Ouarzazate, Morocco. Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of microgabbroic eucrite clasts and related debris. Minerals are exsolved pigeonite (pale orange in thin section), calcic plagioclase (polycrystalline), silica polymorph, ilmenite, Ti-poor chromite, troilite and altered Ni-free metal. Calcite veins are present. Geochemistry: Orthopyroxene host (Fs57.8Wo5.1, FeO/MnO = 29), clinopyroxene exsolution lamella (Fs27.7Wo42.4, FeO/MnO = 28), clinopyroxene host (Fs26.1Wo44.0, FeO/MnO = 28), orthopyroxene exsolution lamella (Fs62.2Wo1.9, FeO/MnO = 29), plagioclase (An89.1-89.8Or0.3-0.4, N = 2). Classification: Eucrite (monomict breccia, microgabbroic, shocked). Specimens: 34.89 g including one polished thin section at UWB; remainder with Mr. B. Hoefnagels. | ||||||||||||||||||||||||||||
Data from: MB105 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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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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