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Northwest Africa 8040 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8040 This is an OFFICIAL meteorite name. Abbreviation: NWA 8040 Observed fall: No Year found: 2013 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 18 Nov 2013 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 102:
Northwest Africa 8040 (NWA 8040) (Northwest Africa) Purchased: 2013 Classification: Carbonaceous chondrite (CK4) History: Purchased by Eric Twelker in 2013 from a dealer in Zagora, Morocco. Petrography: (A. Irving and S. Kuehner, UWS) Separated, well-formed, medium-sized (0.8-2 mm), porphyritic magnetite-bearing chondrules in a matrix containing stained Cr-bearing magnetite. Geochemistry: Olivine (Fa28.6-28.9, n = 3), orthopyroxene (Fs24.0-25.3Wo0.6-0.5), clinopyroxene (Fs8.3-9.7Wo47.2-45.3). Classification: Carbonaceous chondrite (CK4). Specimens: 26.8 g and one polished thin section are at UWB. The remainder is held by Twelker. | ||||||||||||||||||||||||||||||
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) Twelker: Eric Twelker, P.O. Box 844, Port Townsend, WA 98368, United States; Website (private address; updated 1 Dec 2014) |
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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 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |