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| Northwest Africa 4703 | |||||||||||||||||||||
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| Basic information | Name: Northwest Africa 4703 This is an OFFICIAL meteorite name. Abbreviation: NWA 4703 Observed fall: No Year found: 2007 Country: (Northwest Africa) Mass:  114 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 35 approved meteorites classified as Iron, IAB-sLL. [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 4703 (NWA 4703) (Northwest Africa) Purchased: 2007 Classification: Iron meteorite (IAB-sLL) Petrography: Etched surface is curious: some bands mirror-like in their brightness, others dull. Differences depend on crystallographic orientation because dull crosses bright. Abundant Neumann lines. One 3x9 mm FeS inclusion. Silicates and schreibersite not identified. Geochemistry: Co (mg/g) 4.79, Ni (mg/g) 85.2, Ga (µg/g) 76.9, Ge (µg/g) 269, As (µg/g) 16.6, Ir (µg/g) 2.78, Au (µg/g) 1.82. 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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||
| Crosslinks: |
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| Also see: |
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| Revision history: |
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