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Northwest Africa 6231
Basic information Name: Northwest Africa 6231
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6231
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass:help 1724 g
Classification
  history:
Meteoritical Bulletin:  MB 99  (2011)  CK4
Recommended:  CK4    [explanation]

This is 1 of 128 approved meteorites classified as CK4.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 21 Jan 2011
Data from:
  MB99
  Table 0
  Line 0:
Origin or pseudonym:Northwest Africa
Place of purchase:Erfoud
Date:P 2009 Dec
Mass (g):1724
Pieces:1
Class:CK4
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):33.7-34.0
Ferrosilite (mol%):10.5-16.5
Wollastonite (mol%):46.5-48.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):28
Type spec location:UWS
Main mass:M. Cimala
Comments:Submitted by A. Irving
Institutions
   and collections		 UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
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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