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Northwest Africa 4711 | |||||||||||||||||||||
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Basic information | Name: Northwest Africa 4711 This is an OFFICIAL meteorite name. Abbreviation: NWA 4711 Observed fall: No Year found: 2007 Country: (Northwest Africa) Mass: 394 g | ||||||||||||||||||||
Classification history: |
This is 1 of 19 approved meteorites classified as Iron, IAB-sHL. [show all] Search for other: IAB complex irons, Iron meteorites, and Metal-rich meteorites | ||||||||||||||||||||
Comments: | Approved 21 Sep 2010 | ||||||||||||||||||||
Writeup |
Writeup from MB 99:
Northwest Africa 4711 (NWA 4711) (Northwest Africa) Purchased: 2007 Classification: Iron meteorite (IAB-sHL) Petrography: Relatively fresh looking with pronounced octahedrite structure; kamacite bandwidth of 1.2±0.2 mm places it near the Om-Og boundary. Bands irregularly swollen but no interior inclusions were recognized. Smaller kamacites densely decorated with Neumann lines. Larger kamacites show granulation. Schreibersite and FeS not identified. Geochemistry: Co (mg/g) 5.26, Ni (mg/g) 107.3, Ga (µg/g) 21.3, Ge (µg/g) <50, As (µg/g) 20.4, Ir (µg/g) 0.429, Au (µg/g) 2.34. Submitter: J. T. Wasson, UCLA. | ||||||||||||||||||||
Data from: MB99 Table 0 Line 0: |
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Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) Birdsell: Arizona Skies Meteorites, P.O. Box 2412, Flagstaff, AZ 86003, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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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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