has left people with a permanent gray or blue-gray skin tone. Though such a transformation might seem like a scene from a science fiction movie, it is very real—and the effects are long-lasting.

With Argyria, your skin turns bluish-grey when exposed to the sun and even the white of your eyes turns grey. The discoloration caused by silver is usually permanent. However, it has still not ...

Example of pale bluish gray redox depletions. Note the faint rusty orange concentration distributed throughout the soil matrix.