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Northwest Africa 5557
Basic information Name: Northwest Africa 5557
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5557
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 23.5 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  CK5
Recommended:  CK5    [explanation]

This is 1 of 181 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 12 Dec 2012
Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:St. Marie aux Mines, France
Date:P 2008
Mass (g):23.5
Pieces:1
Class:CK5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):30.9
Ferrosilite (mol%):26.5
Classifier:A. Greshake, MNB
Type spec mass (g):7.1
Type spec location:MNB
Main mass:Marc Jost
Comments:The meteorite shows well delineated chondrules, and few irregularly shaped CAIs set into an abundant greyish-greenish matrix. Small Cr-bearing magnetite grains are dispersed in the matrix.; submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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