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Northwest Africa 4860
Basic information Name: Northwest Africa 4860
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4860
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass:help 26 kg
Classification
  history:
Meteoritical Bulletin:  MB 96  (2009)  L4
Recommended:  L4    [explanation]

This is 1 of 1709 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 3 Mar 2009
Data from:
  MB96
  Table 2
  Line 7:
State/Prov/County:Ste Marie aux Mines show, France
Date:May-03
Mass (g):26000
Pieces:4
Class:L4
Shock stage:S6
Weathering grade:W1
Fayalite (mol%):23.7
Ferrosilite (mol%):20.5
Wollastonite (mol%):1.2
Classifier:N. Jamsja, A. Ruzicka, and M. Hutson, Cascadia
Type spec mass (g):307
Type spec location:Cascadia
Main mass:Thompson
Comments:Heavily shocked chondrules/fragments surrounded by melt
Institutions
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Thompson: Edwin Thompson, 5150 Dawn St., Lake Oswego, OR 97035, United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 96, MAPS 44, 1355-1397 (2009)
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)
Krzysztof Nowak   
Mike Markowitz   
Steve Witt   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names)

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