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| Northwest Africa 4707 | |||||||||||||||||||||
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| Basic information | Name: Northwest Africa 4707 This is an OFFICIAL meteorite name. Abbreviation: NWA 4707 Observed fall: No Year found: 2006 Country: (Northwest Africa) Mass:  585 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 338 approved meteorites classified as Iron, IIIAB. [show all] Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites | ||||||||||||||||||||
| Comments: | Approved 21 Sep 2010 | ||||||||||||||||||||
| Writeup |
Writeup from MB 99:
Northwest Africa 4707 (NWA 4707) (Northwest Africa) Purchased: 2006 Classification: Iron meteorite (IIIAB) Petrography: Well-defined structure with relatively abundant taenite. No heat altered zone. Heavily oxidized along one edge of section. Fresh with no oxide layer along the opposite edge. Tiny grains in some kamacite and plessite may reflect minor post-shock annealing. No FeS observed and schreibersite content very low. Kamacite bandwidth ~0.7 mm. Geochemistry: Co (mg/g) 5.18, Ni (mg/g) 81.8, Ga (µg/g) 22.1, Ge (µg/g) <70, As (µg/g) 6.71, Ir (µg/g) 0.748, Au (µg/g) 0.87. 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 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) | ||||||||||||||||||||