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Northwest Africa 7461 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7461 This is an OFFICIAL meteorite name. Abbreviation: NWA 7461 Observed fall: No Year found: 2012 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 119 approved meteorites classified as CK4. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites | ||||||||||||||||||||||||||
Comments: | Approved 30 Sep 2013 | ||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 102:
Northwest Africa 7461 (NWA 7461) (Northwest Africa) Purchased: 2012 Aug Classification: Carbonaceous chondrite (CK4) History: Purchased in Temara, Morocco by Adam Aaronson in August 2012. Petrography: (A. Irving and S. Kuehner, UWS) Fairly fresh specimen with separated, well-developed chondrules containing grains of Cr-magnetite in a fine-grained matrix. Minerals are olivine, orthopyroxene, pigeonite, subcalcic augite, augite, intermediate plagioclase, Cr-magnetite, altered Ni-poor kamacite and pentlandite. Geochemistry: Olivine (Fa27.8-28.1, n=3), orthopyroxene (Fs24.3Wo0.6), pigeonite (Fs16.6Wo23.2), subcalcic augite (Fs12.3Wo34.0), augite (Fs7.5Wo46.3). Classification: Carbonaceous chondrite (CK4). | ||||||||||||||||||||||||||
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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010) |
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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 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |