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| Northwest Africa 791 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 791 This is an OFFICIAL meteorite name. Abbreviation: NWA 791 Observed fall: No Year found: 2001 Country: (Northwest Africa) Mass:  20.96 kg | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 8686 approved meteorites (plus 4 unapproved names) classified as L5. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 17 Dec 2016 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 105:
Northwest Africa 791 (NWA 791) (Northwest Africa) Purchased: 2001 Mar Classification: Ordinary chondrite (L5) History: Purchased by Michael Farmer in March 2001 from a dealer in Casablanca, Morocco. Petrography: (A. Irving and S. Kuehner, UWS) Sparse chondrules occur in a recrystallized matrix containing stained metal. Geochemistry: Olivine (Fa25.5-25.8, N = 3), orthopyroxene (Fs20.5-20.7Wo1.4-1.6, N = 3), clinopyroxene (Fs7.4-8.3Wo44.9-44.3, N = 2). Classification: Ordinary chondrite (L6). Specimens: 146.7 g including one polished thin section at PSF; 226 g at UCLA; remainder is held by MFarmer. | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Data from: MB105 Table 0 Line 0: |
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| Institutions and collections |
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011) UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) MFarmer: Michael Farmer, P.O. Box 86059, Tucson, AZ 85754-6059, United States; Website (private address) |
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| References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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| Geography: |
Statistics: This is 1 of 9344 approved meteorites from (Northwest Africa) (plus 1872 unapproved names) | ||||||||||||||||||||||||||||||||||||||||||||||||||