Green "stuff" on a 1913 Indian Head Nickel

Oldnewbie

I bought this PCGS MS64 Buffalo from a local dealer. I didn't look at it real close untill I got it home. Under a 7X loupe I noticed this green dot and other green stuff in the crevices. I don't know if anyone can tell from my 50X photo of the surface, but is this verdigris?

nankraut

PVC

SemperFI

Looks like a satellite image of the Euphrates River.

Shamika

I think it's verdigris, but I'm not certain.

DorkGirl

<< <i>Looks like a satellite image of the Euphrates River. >>

Oldnewbie

LOL, I was thinking green cheese on the moon. It's nasty looking in person.