Discussion in 'Error Coins' started by Angie Keith, Nov 21, 2020 at 6:32 PM.
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Nickels are made of Cupro-Nickel.
75% Copper and 25% Nickel.
When exposed to a harsh environment for a long period of time the Copper is affected and tones a darker color. Soil, dirt, sand, water and chemicals will do this..
Here are my metal detected examples.
Same goes for clad coins. Also Cupro-Nickel.
Separate names with a comma.