  Interesting melted shape of copper.
Description supplied by the source:
This is a good sample of several possible appearances for copper- the top is wire-brushed, if memory serves, the bottom is the as-cast surface that was up against the also-copper crucible, and the side shows the internal crystalline structure. I melted this particular piece from 4N5 pure melt stock in a shallow crucible: It's just a nice looking sample.
Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 21 March, 2008
Text Updated: 21 March, 2008
Price: Anonymous
Size: 3"
Purity: 99.99%
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