Meteoritical Bulletin: Entry for Northwest Africa 4706

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Northwest Africa 4706

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:

Meteoritical Bulletin:	MB 99	(2011)	Iron, IAB-sHL
Recommended:			Iron, IAB-sHL [explanation]

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:

Place of purchase:	Tucson
Date:	P 2006
Mass (g):	227
Pieces:	1
Class:	Iron, IAB-sHL
Classifier:	Wasson
Type spec mass (g):	22
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]

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

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Revision
history:

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