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Northwest Africa 6621
Basic information Name: Northwest Africa 6621
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6621
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 24 kg
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  H4
Recommended:  H4    [explanation]

This is 1 of 6426 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 19 Jul 2011
Data from:
  MB100
  Table 1
  Line 1435:
Place of purchase:Tucson
Date:P 2011 Feb
Mass (g):24000
Pieces:5
Class:H4
Shock stage:S2
Weathering grade:W1-2
Fayalite (mol%):17.5±1
Ferrosilite (mol%):15.5±1.5
Classifier:K. Metzler, IfP
Type spec mass (g):22
Type spec location:IfP
Main mass:M. Cottingham
Comments:Submitted by K. Metzler
Institutions
   and collections		 IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Aeroliths Collection Theodossiou   
METEORITICON   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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