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Northwest Africa 4713
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:help 154 g
Classification
  history:
Meteoritical Bulletin:  MB 99  (2011)  Iron, IAB-sLM
Recommended:  Iron, IAB-sLM    [explanation]

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
Writeuphelp
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:
Place of purchase:Tucson
Date:2007
Mass (g):154
Pieces:1
Class:Iron, IAB-sLM
Classifier:Wasson
Type spec mass (g):23
Type spec location:UCLA
Main mass:Birdsell
Comments:Submitted by Wasson
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)
Catalogs:
References: Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7009 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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