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Northwest Africa 6954 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 6954 This is an OFFICIAL meteorite name. Abbreviation: NWA 6954 Observed fall: No Year found: 2011 Country: (Northwest Africa) Mass: 157 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 62 approved meteorites classified as L3.6. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 6 Sep 2013 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 6954 (NWA 6954) Northwest Africa Purchased: 2011 Aug Classification: Ordinary chondrite (L3.6) Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, medium-sized chondrules. Minerals are olivine, orthopyroxene, clinopyroxene, sodic plagioclase, altered kamacite, chromite, troilite and taenite. Geochemistry: Olivine (Fa0.7-39.3; Cr2O3 in ferroan examples is 0.02-0.09 wt.%, mean 0.03 wt.%, s.d. 0.03 wt.%, N = 8), orthopyroxene (Fs2.1-24.7Wo0.3-1.3), clinopyroxene (Fs17.5Wo27.1; Fs7.3Wo45.1). Classification: Ordinary chondrite (L3.6). Subtype estimated to be 3.6 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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Photos: |
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Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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