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| Northwest Africa 4700 | |||||||||||||||||||||
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| Basic information | Name: Northwest Africa 4700 This is an OFFICIAL meteorite name. Abbreviation: NWA 4700 Observed fall: No Year found: 2007 Country: (Northwest Africa) Mass:  3.08 kg | ||||||||||||||||||||
| Classification history: |
This is 1 of 34 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 4700 (NWA 4700) (Northwest Africa) Purchased: 2007 Classification: Iron meteorite (IAB-sLL) Petrography: Large schreibersite visible on top and bottom surfaces of 4 mm slice. No FeS observed. Kamacite contains abundant rhabdites. No silicates recognized. Bandwidth variable, 1.0 to 1.6 mm. Presumably purchased at same time as the very similar NWA 4703. Geochemistry: Co (mg/g) 5.00, Ni (mg/g) 80.0, Ga (µg/g) 75.4, Ge (µg/g) 349, As (µg/g) 17.0, Ir (µg/g) 2.75, Au (µg/g) 1.84. 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 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names) | ||||||||||||||||||||