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Northwest Africa 8778 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8778 This is an OFFICIAL meteorite name. Abbreviation: NWA 8778 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: 391 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 710 approved meteorites (plus 2 unapproved names) classified as H3. [show all] Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 17 Nov 2015 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 104:
Northwest Africa 8778 (NWA 8778) (Northwest Africa) Purchased: 2014 Apr Classification: Ordinary chondrite (H3) History: Purchased by Darryl Pitt in April 2014 from a dealer in Mauritania. Petrography: (A. Irving and S. Kuehner, UWS) Fairly closely-packed, relatively small, well-formed chondrules occur in a stained metal-rich matrix rich. Minerals are olivine (some with very forsteritic cores), orthopyroxene, pigeonite, augite, sodic plagioclase, chromite, altered kamacite and troilite. Geochemistry: Olivine (core Fa0.7; predominantly Fa16.8-17.3, mean Fa17.1, N = 7), orthopyroxene (Fs3.8-37.7Wo0.1-4.3, N = 3), pigeonite (Fs4.3Wo22.7), augite (Fs4.3Wo40.9). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.89. Classification: Ordinary chondrite (H3). Specimens: 24.1 g including one polished thin section at UWB; the remainder is held by DPitt. | ||||||||||||||||||||||||||||||||
Data from: MB104 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) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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