Meteoritical Bulletin: Entry for Northwest Africa 4707

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Northwest Africa 4707

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:

Meteoritical Bulletin:	MB 99	(2011)	Iron, IIIAB
Recommended:			Iron, IIIAB [explanation]

This is 1 of 343 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:

Place of purchase:	Tucson
Date:	P 2006
Mass (g):	585
Pieces:	1
Class:	Iron, IIIAB
Classifier:	Wasson
Type spec mass (g):	33
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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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