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 |    Copper scrubbing pad. 
This is a copper-plated scouring pad.  I'm not sure what the copper is plated over, but I would guess iron. 
Source: Walmart 
Contributor: Theodore Gray 
Acquired: 28 February, 2009 
Text Updated: 1 March, 2009 
Price: $2 
Size: 3" 
Purity: 1%
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