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Northwest Africa 1957
Basic information Name: Northwest Africa 1957
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1957
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 6.59 kg
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  L5
MetBase:  v. 7.1  (2006)  L5
Recommended:  L5    [explanation]

This is 1 of 8891 approved meteorites (plus 5 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)
Data from:
  MB89
  Table 7
  Line 40:
Date:2002
Mass (g):6593
Pieces:several
Class:L5
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):24.7±0.5
Ferrosilite (mol%):20.5±0.4
Classifier:G. Huss, ASU
Type spec mass (g):92.6
Comments:Wo1.3±0.3
Institutions
   and collections		 ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Gerald Armstrong   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

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