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Northwest Africa 4540
Basic information Name: Northwest Africa 4540
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4540
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass:help 1310 g
Classification
  history:
Meteoritical Bulletin:  MB 94  (2008)  CO3.5
Recommended:  CO3.5    [explanation]

This is 1 of 12 approved meteorites classified as CO3.5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 4 May 2008
Data from:
  MB94
  Table 2
  Line 38:
State/Prov/County:Erfoud, Morocco
Date:2006
Mass (g):1310
Pieces:1
Class:CO3.5
Shock stage:moderate
Weathering grade:moderate
Fayalite (mol%):38.3
Classifier:T. Bunch and J. Wittke, NAU
Type spec mass (g):22
Type spec location:NAU
Comments:FeO/MnO =121
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
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)
Andreas Grünemeyer   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7027 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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