You searched for: “chrysoderma
chrysoderma (s) (noun), chrysodermas (pl) (pl)
A pigmentation or discoloration of the skin which is caused by the use of gold preparations: Chrysodermas are usually existing in spots here and there and are made worse when exposed to sunlight.

Chrysoderma can have a permanent gray to light purple color on the face, eyelids, and other sun-exposed areas of a person's body.