Grease or Burn?

Found this 2001 P dime and thought it looked pretty strange. I tried to wipe the black off, but it wouldn't come off. I've seen a lot of posts about grease-filled dies and was wondering if this might also be a grease-filled dime. The areas without black are very shiny, and there's not much wear on the coin. Now that I look at the bigger pictures, they could also be just burn marks...I'm not to familiar with the whole error-scene, but tell me what you think!

Thanks!

 

Log in or Sign up to hide this ad.

Your coin is tarnished. A grease-filled die causes portions of the design (e.g., letters or numerals) to be weakly struck (because grease has filled that portion of the die preventing metal from flowing into those areas). A grease-filled die does not cause a coin to turn black.

 

ok, thanks! haha, should have known it would be something incredibly common...

 

Is it the copper in the coin that tarnishes since I don't think nickel does. Thanks

 

Actually they both tarnish , but copper reacts more readily than the nickle does .
rzage:whistle:

 

A coin that has been burned will retain that smoke smell for quite some time even after it's been in circulation for a while.

Lou