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Northwest Africa 4431
Basic information Name: Northwest Africa 4431
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4431
Observed fall: No
Year found: 2005
Country: Algeria
Mass:help 450 g
Classification
  history:
Recommended:  L5    [explanation]

This is 1 of 8581 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 28 Sep 2007
Data from:
  MB93
  Table 2
  Line 49:
Place of purchase:Algeria, purchased in Morocco
Date:2005
Mass (g):450
Pieces:Many
Class:L5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):23.4
Ferrosilite (mol%):20.4
Classifier:T. Bunch, NAU
Type spec mass (g):21.7
Type spec location:PSF
Main mass:Cimala
Institutions
   and collections		 NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 93, MAPS 43, 571-632 (2008)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Polandmet   
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1270 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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