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Northwest Africa 7326 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7326 This is an OFFICIAL meteorite name. Abbreviation: NWA 7326 Observed fall: No Year found: 2004 Country: (Northwest Africa) Mass: 60.1 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 279 approved meteorites classified as Eucrite-mmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 18 Dec 2012 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 101:
Northwest Africa 7326 (NWA 7326) (Northwest Africa) Purchased: 2004 Classification: HED achondrite (Eucrite, monomict) History: Purchased by Pierre-Marie Pele in 2004 from a Moroccan dealer. Petrography: (A. Irving and S. Kuehner, UWS) Fine-grained monomict breccia composed mainly of unexsolved pyroxene and calcic plagioclase with accessory ilmenite, troilite, silica polymorph, chromite, rare baddeleyite, and larger grains of altered Ni-free metal. Pyroxene is mostly pigeonite with sparse orthopyroxene, and has been recrystallized into aggregates of polygonal grains. Plagioclase has been transformed by shock to aggregates of tiny birefringent grains, and probably underwent complete melting. Geochemistry: Pigeonite (Fs48.5-50.6Wo15.6-12.7, FeO/MnO = 30-33), orthopyroxene (Fs55.7Wo2.5, FeO/MnO = 38). Classification: Eucrite, monomict Specimens: 13.8 g of type material and one polished thin section are on deposit at UWB. The remaining material is held by Mr. P. Pele. | ||||||||||||||||||||||||||||
Data from: MB101 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. 101, MAPS 50, 1661, September 2015
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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