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Northwest Africa 4229
Basic information Name: Northwest Africa 4229
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4229
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 439 g
Classification
  history:
Meteoritical Bulletin:  MB 92  (2007)  H7
Recommended:  H7    [explanation]

This is 1 of 29 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 4229, correction

The oxygen isotopes in MB92 were incorrect. The actual values are:  δ18O = 4.29, 4.52; δ17O = 2.95, 3.11; Δ17O = 0.693, 0.732 (all ‰)
Data from:
  MB92
  Table 2
  Line 15:
Place of purchase:Tagounite, Morocco
Date:Dec-2005
Mass (g):439
Pieces:1
Class:H7
Fayalite (mol%):18.4-18.7
Ferrosilite (mol%):16.4
Wollastonite (mol%):3.1-4.2
Classifier:A. Irving, UWS
Type spec mass (g):20.3
Type spec location:UWS
Main mass:GHupé
Comments:δ18O = 2.95, 3.11; δ17O = 4.29, 4.52; Δ17O = 0.693, 0.732 (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:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Michael Cottingham      
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Christophe PICQ   
David Hardy   
Gerald Armstrong Photo added 19 Apr 2022
Solar Anamnesis      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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