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Northwest Africa 7818 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7818 This is an OFFICIAL meteorite name. Abbreviation: NWA 7818 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 3182 approved meteorites (plus 1 unapproved name) classified as LL5. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 28 Jun 2013 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 102:
Northwest Africa 7818 (NWA 7818) (Northwest Africa) Purchased: 2013 Feb Classification: Ordinary chondrite (LL5) History: Purchased by GHupé in February 2013 from a Moroccan dealer at the Tucson Gem and Mineral Show. Petrography: (A. Irving and S. Kuehner, UWS) Fairly sparse, large chondrules and partial chondrules in a recrystallized matrix. Olivine, orthopyroxene, clinopyroxene, sodic plagioclase, altered kamacite, taenite and troilite. Thin shock veins crosscut the specimen. Geochemistry: Olivine (Fa28.4-28.5), orthopyroxene (Fs23.6-24.1Wo1.4-1.8), clinopyroxene (Fs7.6-8.1Wo45.9-45.6). Classification: Ordinary chondrite (LL5, moderately shocked). Specimens: A total of 22.7 g of material and one polished thin section are on deposit at UWB. GHupé holds the main mass. | ||||||||||||||||||||||||||||||
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) 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 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names) |