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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 1999 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 Photo added 20 Oct 2022
Mike Markowitz   
Steve Witt Photo added 20 Oct 2022
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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