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Northwest Africa 2257
Basic information Name: Northwest Africa 2257
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2257
Observed fall: No
Year found: 2001
Country: Algeria
Mass:help 47.9 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  L6
MetBase:  v. 7.1  (2006)  L6
Recommended:  L6    [explanation]

This is 1 of 13053 approved meteorites (plus 11 unapproved names) classified as L6.   [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 142:
Origin or pseudonym:Algeria
Date:1 Oct 2001
Latitude:28°30'N
Longitude:7°54'W
Mass (g):47.9
Pieces:1
Class:L6
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):24
Ferrosilite (mol%):20
Classifier:A. Seddiki, Université d'Oran, Es-Sénia, Algeria, and Universitè Jean Monnet, Saint-Etienne, France; B. Moine, J.Y. Cottin, Universitè Jean Monnet, Saint-Etienne, France. V. Sautter, J.P. Lorand, M. Denise, MNHNP)
Type spec mass (g):24.2
Main mass:MNHNP
Institutions
   and collections		 MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Geography:

Algeria
Coordinates:
     Recommended::   (28° 30'N, 7° 54'W)

Statistics:
     This is 1 of 61 approved meteorites from Tindouf, Algeria (plus 1 impact crater)
     This is 1 of 1399 approved meteorites from Algeria (plus 33 unapproved names) (plus 4 impact craters)
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