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Northwest Africa 5785 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 5785 This is an OFFICIAL meteorite name. Abbreviation: NWA 5785 Observed fall: No Year found: 2005 Country: (Northwest Africa) Mass: 1800 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 409 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 10 Dec 2013 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 5785 (NWA 5785) (Northwest Africa) Purchased: 2005 Feb Classification: HED achondrite (Eucrite, polymict) History: Purchased in Feb 2005 from a Moroccan dealer at the Tucson Gem and Mineral Show. Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia consisting of basaltic eucrite clasts composed predominantly of exsolved pigeonite and calcic plagioclase with accessory silica polymoprh, Ti-chromite, troilite and Ni-free metal. Some clasts containing more metal are heavily stained with secondary iron hydroxides. Geochemistry: Orthopyroxene host (Fs57.8-58.9Wo3.0-2.8, FeO/MnO = 27-28), clinopyroxene exsolution lamellae (Fs26.3-27.2Wo42.8-41.2, FeO/MnO = 26-28). Classification: Eucrite (polymict). Specimens: Type specimen plus one polished thin section at PSF; main mass with anonymous collector. | ||||||||||||||||||||||||||||
Data from: MB102 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) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) |
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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 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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