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Northwest Africa 4231
Basic information Name: Northwest Africa 4231
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4231
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 269 g
Classification
  history:
Meteoritical Bulletin:  MB 94  (2008)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 531 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 4 May 2008
Data from:
  MB94
  Table 2
  Line 12:
State/Prov/County:Erfoud
Date:Dec-2005
Mass (g):269
Pieces:1
Class:Ureilite
Fayalite (mol%):22.7
Ferrosilite (mol%):18.7
Wollastonite (mol%):9.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.7
Type spec location:UWS
Main mass:GHupé
Comments:Cr2O3 in olivine = 0.60 wt%
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)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Gerald Armstrong   
Robert Zdancewicz   
Volker Heinrich   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7320 approved meteorites from (Northwest Africa) (plus 1973 unapproved names)

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