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| Northwest Africa 4713 | |||||||||||||||||||||
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| Basic information | Name: Northwest Africa 4713 This is an OFFICIAL meteorite name. Abbreviation: NWA 4713 Observed fall: No Year found: 2006 Country: (Northwest Africa) Mass:  154 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 12 approved meteorites classified as Iron, IAB-sLM. [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 4713 (NWA 4713) (Northwest Africa) Found: 2007 Classification: Iron meteorite (IAB-sLM) Petrography: The UCLA sample is half of an oblate spheroid ~3 cm in diameter and 1 cm thick. The surface is covered by iron oxides. The deep-etched surface shows no octahedral pattern, and thus is a heated and recrystallized structure. There are many small (0.05 to 0.15 mm) irregular holes (or clumps of holes) scattered uniformly in the metal. The areal density is about 1 mm-2 and thus ~1 vol%. The meteorite is a member of sLM with Maltahöhe its nearest relative; thus its structure differs markedly from the very attractive Of structures of the other irons in this subgroup. Geochemistry: Co (mg/g) 5.30, Ni (mg/g) 144.5, Ga (µg/g) 33.6, Ge (µg/g) <80, As (µg/g) 19.2, Ir (µg/g) 0.909, Au (µg/g) 1.61. 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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