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Northwest Africa 4700
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:help 3.08 kg
Classification
  history:
Meteoritical Bulletin:  MB 99  (2011)  Iron, IAB-sLL
Recommended:  Iron, IAB-sLL    [explanation]

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
Writeuphelp
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:
Place of purchase:Tucson
Date:P 2007
Mass (g):3080
Pieces:1
Class:Iron, IAB-sLL
Classifier:Wasson
Type spec mass (g):38
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 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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