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Northwest Africa 2457
Basic information Name: Northwest Africa 2457
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2457
Observed fall: No
Year found: 2000
Country: (Northwest Africa)
Mass:help 172 g
Classification
  history:
Meteoritical Bulletin:  MB 90  (2006)  Impact melt breccia
Recommended:  Impact melt breccia    [explanation]

This is the only approved meteorite classified as Impact melt breccia.
Search for other: Melted chondrites, Ungrouped chondrites
Comments: Approved 3 Feb 2006
Data from:
  MB90
  Table 2
  Line 25:
Place of purchase:Sainte Marie
Date:Jun 2004
Mass (g):172
Pieces:1
Class:Imb
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):10.5 ± 3
Classifier:A. Sokol, Meimeier, and A. Bischoff
Type spec mass (g):22
Type spec location:Mun
Comments:Corrected class to IMB 26 July 2007
Institutions
   and collections		 Mun: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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