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| Northwest Africa 4706 | |||||||||||||||||||||
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| Basic information | Name: Northwest Africa 4706 This is an OFFICIAL meteorite name. Abbreviation: NWA 4706 Observed fall: No Year found: 2006 Country: (Northwest Africa) Mass:  227 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 4706 (NWA 4706) (Northwest Africa) Purchased: 2006 Classification: Iron meteorite (IAB-sHL) Petrography: Fine octahedrite, attractive. There is much fine plessite, 40-50% of the area. Schreibersite is present as small, 0.2 mm wide, 0.3 to 0.5 mm long, grains in the centers of wide kamacites, and is especially abundant at intersections of kamacite bands. No troilite observed. Paired with NWA 4710 and NWA 3200; kamacite bandwidth 0.4±0.1 mm. Geochemistry: Co (mg/g) 5.49, Ni (mg/g) 107.8, Ga (µg/g) 22.0, Ge (µg/g) 67, As (µg/g) 23.5, Ir (µg/g) 0.194, 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 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names) | ||||||||||||||||||||