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Northwest Africa 8411 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8411 This is an OFFICIAL meteorite name. Abbreviation: NWA 8411 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: 982 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 451 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||||||||||||
Comments: | Approved 25 Nov 2014 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 8411 (NWA 8411) (Northwest Africa) Purchased: 2013 Jun Classification: HED achondrite (Howardite) History: Purchased in June 2013 by Marc Jost from a Moroccan dealer at the Ensisheim Show. Petrography: (A. Irving and S. Kuehner, UWS) Fresh fragmental breccia composed of clasts of gabbroic eucrite, minor fine grained, recrystallized basaltic eucrite, large grains of diogenitic orthopyroxene (~12 vol.%, of varying composition) and related crystalline debris. Minerals are calcic plagioclase, orthopyroxene, ferroan low-Ca pyroxene, augite, Ti-poor chromite and troilite. Geochemistry: Orthopyroxene (Fs14.9-15.9Wo0.4-0.5, FeO/MnO = 28-32, N = 2; Fs21.7Wo1.5, FeO/MnO = 27), ferroan low-Ca pyroxene (Fs52.8Wo3.4; FeO/MnO = 33), augite (Fs26.9Wo40.0, FeO/MnO = 30; Fs32.7Wo41.6, FeO/MnO = 31), olivine (Fa45.1-48.1; FeO/MnO = 46-47, N = 2). Classification: Howardite. Specimens: 26.1 g including one polished thin section at UWB. The remainder is held by SJS. | ||||||||||||||||||||||||||||||
Data from: MB103 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) SJS: Space Jewels Switzerland, 2555 Brügg, Switzerland (private address; updated 3 Jan 2010) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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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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