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Northwest Africa 7958 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7958 This is an OFFICIAL meteorite name. Abbreviation: NWA 7958 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: 48.3 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 598 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 14 Nov 2013 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 7958 (NWA 7958) (Northwest Africa) Purchased: 2013 Apr Classification: HED achondrite (Eucrite) History: Purchased by Steve Witt in April 2013 from a Moroccan dealer. Petrography: (A. Irving and S. Kuehner, UWS) Unbrecciated but somewhat shocked specimen containing cross-cutting, thin, glassy veinlets. Intersertal assemblage of exsolved pigeonite, calcic plagioclase (exhibiting irregular, patchy birefringence), silica, ilmenite, troilite and tiny grains of zircon. Geochemistry: Host orthopyroxene (Fs61.8-61.9Wo 1.9-3.2; FeO/MnO = 32-33), clinopyroxene exsolution lamellae (Fs26.0-26.3Wo44.3; FeO/MnO = 30-31). Classification: Eucrite (basaltic). Specimens: 10.6 g and one polished thin section are at UWB. The remainder is held by Mr. S. Witt. | ||||||||||||||||||||||||||||
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) |
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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 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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