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Northwest Africa 7815 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7815 This is an OFFICIAL meteorite name. Abbreviation: NWA 7815 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: 146 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 16 approved meteorites classified as CO3.1. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 12 Sep 2013 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 7815 (NWA 7815) (Northwest Africa) Purchased: 2013 Feb Classification: Carbonaceous chondrite (CO3.1) History: Purchased by GHupé in February 2013 from a dealer at the Tucson Gem and Mineral Show. Petrography: (A. Irving and S. Kuehner, UWS) Composed of very small, well-formed chondrules plus sparse, fine-grained CAIs and angular olivine grains in a dark brown, fine-grained matrix. Geochemistry: Olivine (Fa0.7-70.4; Cr2O3 in ferroan olivine = 0.16-0.53 wt.%, mean 0.25 wt.%, s.d. 0.12, N = 17), orthopyroxene (Fs1.1-16.5Wo0.9-4.6), clinopyroxene (Fs1.3-2.7Wo47.7-51.3). Classification: Carbonaceous chondrite (CO3.1). Estimation of subtype based on the scheme of Grossman and Brearley (2005). Specimens: A total of 20.2 g of material and one polished thin section are on deposit at UWB. GHupé holds the main mass. | ||||||||||||||||||||||||||||||
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) GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address) |
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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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