Electrowinning plate. | |||
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Electrowinning plate. This is almost certainly a plate that came from the electrolytic extraction of cobalt from its ore, or from an electrolytic purification process. Cobalt was dissolved in a solution and electricity was used to plate it out onto an electrode. Very pretty, very heavy. Source: eBay seller akilawolf Contributor: Theodore Gray Acquired: 5 June, 2003 Price: $15.50 Size: 1.2" Purity: 99.9% | |||
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