PART V. Planchet Errors:
Plating Errors:
Split plating
Definition: Split plating occurs when the copper plating is stretched too thin causing it separate. This separation usually occurs immediately after a design element and has a direction towards the rim of the coin affected.
Below are two views of a Lincoln cent, one of the mintmark on a 1992-D and the other on the reverse showing the memorial roof. In each case, the plating has split exposing the zinc core below which has a bluish hue.
The image above of a 1982-D Lincoln cent show split platting after the 2 in the date and the mintmark. The crystal formation seen below and to the right of the mintmark is Hydrozincite and it is a form of post strike damage.