Is this a Bronze Disease?

Hello friends
On this safavid coin the green patina is visible. Is this a Bronze Disease? If yes what is your Suggestion about clean it. What must I do? I've never had the experience abut it. realy I'm afraid of repair it.

 

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Looks like regular copper, hard to tell from the photos.

Did you use a toothpick and try and pick some of it off? Is it powdery if it does? Even your fingernail can work.

 

Doesn't look it too many. Mineral deposit would be my guess.

 

I agree. Unless you see a powder building up on the surface over time that it easily brushed off, it's not bronze disease, just normal oxidation of copper.

 

thank for all