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Northwest Africa 8038 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8038 This is an OFFICIAL meteorite name. Abbreviation: NWA 8038 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 621 approved meteorites (plus 1 unapproved name) classified as CO3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 18 Nov 2013 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 102:
Northwest Africa 8038 (NWA 8038) (Northwest Africa) Purchased: 2013 Feb Classification: Carbonaceous chondrite (CO3) History: Purchased by Eric Twelker in February 2013 from a Moroccan dealer at the Tucson Gem and Mineral Show. Petrography: (A. Irving and S. Kuehner, UWS) Small chondrules (mostly 0.2-0.6 mm, some up to 1.5 mm) and fine-grained CAI (composed of hibonite and spinel, with rims of aluminous clinopyroxene) in a dark brown, stained matrix. Minor pentlandite occurs in the matrix. Geochemistry: Olivine (Fa0.3-39.1; Cr2O3 in ferroan olivine 0.06-0.15 wt.%, mean 0.09 wt.%, s.d. 0.03 wt.%, N = 7), orthopyroxene (Fs1.3-8.9Wo4.3-2.8), clinopyroxene (Fs1.4Wo38.6; Fs1.3Wo48.8; Fs16.9Wo53.0). Classification: Carbonaceous chondrite (CO3). Subtype is estimated to be 3.5 on the basis of the narrow distribution of Cr2O3 in ferroan olivine. Specimens: 22.3 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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Photos: |
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |