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Northwest Africa 6479 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 6479 This is an OFFICIAL meteorite name. Abbreviation: NWA 6479 Observed fall: No Year found: 2010 Country: (Northwest Africa) Mass: 450 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 22 approved meteorites classified as LL3.5. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 6 Sep 2013 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 6479 (NWA 6479) Northwest Africa Purchased: 2010 Nov Classification: Ordinary chondrite (LL3.5) Petrography: (A. Irving and S. Kuehner, UWS) Large (to 1.1 mm), well-formed chondrules and sparse black inclusions (very fine grained) in a finer grained matrix. Minerals are olivine, orthopyroxene, subcalcic augite, augite, sodic plagioclase, chromite, altered kamacite and troilite. One grain of gehlenite (possibly derived from a CAI) was found. Geochemistry: Olivine (Fa1.0-59.0; Cr2O3 in ferroan olivine = 0.06-0.11 wt.%, mean 0.10, s.d. 0.02, N = 7), orthopyroxene (Fs2.5-24.0Wo0.2-2.4), subcalcic augite (Fs13.1Wo37.4), augite (Fs9.1Wo45.7). Classification: Ordinary chondrite (LL3.5). Subtype estimated to be 3.5 based on Cr2O3 range in ferroan olivine. Estimation of subtype based on histograms (Fig. 4) in Grossman and Brearley (2005). | ||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB102 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. 102, MAPS 50, 1662, September 2015
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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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