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Old 03-24-2010, 05:54 AM
figure9 figure9 is offline
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Nickel + Gold = Black skin?
At work we got some large (50 lb.) nickel plated steel parts. People who handled them, while wearing gold jewelery, had their skin turn black, where the jewelery was. It wasn't dark black, more like someone had rubbed pencil shavings on them.
So where did the black come from?
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