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Northwest Africa 4428
Basic information Name: Northwest Africa 4428
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4428
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass:help 301 g
Classification
  history:
Meteoritical Bulletin:  MB 99  (2011)  H4
Recommended:  H4    [explanation]

This is 1 of 6375 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 14 Jan 2011
Data from:
  MB99
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2006
Mass (g):301.4
Pieces:1
Class:H4
Shock stage:S1
Weathering grade:W3
Fayalite (mol%):18.75
Ferrosilite (mol%):16.56
Wollastonite (mol%):1.51
Classifier:Vanni Moggi Cecchi, MSP
Type spec mass (g):22.24 + 1 PTS + 1 block (MSP 5046)
Type spec location:MSP
Main mass:Chinellato
Comments:Submitted by Vanni Moggi Cecchi
Institutions
   and collections
MSP: Museo di Scienze Planetarie, Via Galcianese 20/H, 59100 Prato, Italy, Italy; Website (institutional address; updated 5 Mar 2014)
Catalogs:
References: Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
John Creech, Victoria University of Wellington Photo added 19 Apr 2022
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8674 approved meteorites from (Northwest Africa) (plus 1882 unapproved names)

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