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Northwest Africa 4226
Basic information Name: Northwest Africa 4226
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4226
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 617 g
Classification
  history:
Meteoritical Bulletin:  MB 92  (2007)  H7
Recommended:  H7    [explanation]

This is 1 of 31 approved meteorites classified as H7.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 24 Jul 2007
Revised 31 May 2019: Corrected O isotopes
Writeuphelp
Writeup from MB 108:
NWA 4226, correction

The oxygen isotopes in MB92 were incorrect. The actual values are:  δ18O = 4.33, 4.95; δ17O = 3.03, 3.33; Δ17O = 0.752, 0.726 (all ‰)
Data from:
  MB92
  Table 2
  Line 14:
Place of purchase:Algeria
Date:Dec-2005
Mass (g):617
Pieces:1
Class:H7
Fayalite (mol%):18.5-19.2
Ferrosilite (mol%):16.3
Wollastonite (mol%):3.5-3.9
Classifier:A. Irving, UWS
Type spec mass (g):20.1
Type spec location:UWS
Main mass:GHupé
Comments:δ18O = 3.03, 3.33; δ17O = 4.33, 4.95; Δ17O = 0.752, 0.726 (all ‰)
Plots: O isotopes:  
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. 92, MAPS 42, 1647-1694 (2007)
Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9370 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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