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Northwest Africa 8058 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8058 This is an OFFICIAL meteorite name. Abbreviation: NWA 8058 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: 31.4 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 840 approved meteorites (plus 2 unapproved names) classified as L3. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 30 Aug 2014 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 8058 (NWA 8058) (Northwest Africa) Purchased: 2013 Jul Classification: Ordinary chondrite (L3) History: Purchased by Gary Fujihara in July 2013 from a Moroccan dealer. Petrography: (A. Irving and S. Kuehner, UWS) Fairly closely packed, medium-sized (0.6-3.1 mm, mean 1.7±1.0 mm) chondrules are set in a black matrix. Minerals are olivine, orthopyroxene, subcalcic augite, augite, sodic plagioclase, chromite, stained kamacite and troilite. Geochemistry: Olivine (Fa0.7-47.5, N = 10; Cr2O3 in ferroan examples is 0.04-0.32 wt.%, mean 0.11 wt.%, s.d. 0.10 wt.%, N = 8), orthopyroxene (Fs4.4-31.4Wo0.4-1.9, N=3), subcalcic augite (Fs13.1Wo28.5; Fs25.0Wo36.6), augite (Fs11.4Wo41.5). Classification: Ordinary chondrite (L3). Estimation of subtype is 3.4 based on histograms of Cr2O3 distribution in ferroan olivine given in Fig. 4 of Grossman and Brearley (2005). Specimens: 7.2 g including one polished thin section at UWB. The remainder is held by G. Fujihara. | ||||||||||||||||||||||||||||||
Bibliography: |
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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) |
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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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