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Northwest Africa 7889 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7889 This is an OFFICIAL meteorite name. Abbreviation: NWA 7889 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: 28 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 10 Dec 2013 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 7889 (NWA 7889) (Northwest Africa) Purchased: 2013 Feb Classification: HED achondrite (Eucrite) History: Purchased by Alexandre Debienne in February 2013 from a dealer in Agadir, Morocco. Petrography: (A. Irving and S. Kuehner, UWS) Microgabbroic igneous texture. Composed of calcic plagioclase, exsolved pigeonite, silica polymorph, ilmenite, Ti-poor chromite, Ti-rich chromite and troilite. Geochemistry: Orthopyroxene host (Fs56.9-57.1Wo3.4-1.8, FeO/MnO = 30-31), clinopyroxene exsolution lamellae (Fs24.1-25.2Wo43.3-43.0, FeO/MnO = 28-29). Classification: Eucrite (microgabbroic). Specimens: Type specimen plus one polished probe mount at PSF; main mass with A. Debienne. | ||||||||||||||||||||||||||||
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 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
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Revision history: |
This lists important revisions made to data for this record.
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