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Fancy chocolate tin. Description supplied by the source: This is another arc-melted button of a particular alloy of iron-cobalt slated to be used for magnetism research. I chose to send you this particular sample because of the beautiful surface and crystal grains visible. Source: Ethan Currens Contributor: Ethan Currens Acquired: 21 March, 2008 Price: Anonymous Size: 1.5" Composition: FeCo | |||
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