Question to any metalurgist CRH

[Dozer D]

Does anyone know for CERTAIN if the green color oxidation on pennies can contaminate other coins that it comes in contact with? I've run into a fairly large batch of green cents and was concerned about "THE GREEN PLAGUE"!

 

[BigWaveDave]

If each of those green cents have different dates, they prolly came from a Whitman folder, that was stored in a humid environment. Acetone will take off the green schmegma. As far as the plague spreading to other cents, don't expect it.

 

[enamel7]

If the verdigris is caused by a substance actually on the coin it can definitely transfer. Like was said soak it in acetone for a few minutes. That will stop it.