1994 D penny die error

I have this penny and it seems to have a lot of little blobs all over it. Can anyone tell me what this is or why it is there?

 

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Gas bubbles. Once those pop, your poor coin will die a quick death from zinc rot.

 

http://www.error-ref.com/?s=Plating+blisters

 

Your Cent is struck on a Copper Plated Zinc Planchet. As stated it has plating bubbles.
Really nothing major.

 

Aw man. I was hoping for some kind of rare error.

 

Rare errors is something we rarely see on CoinTalk. Unless it's something someone purchased that's certified. In the raw and from circulation it's a bit harder to find.

 

I see

 

But. It's great that you ask. It's the best way for you to learn the differences. Keep searching. Once in a Blue Moon someone might find something great. Could be you

 

When you say quick do you mean within a year's time or what?

 

Common plating bubbles. The coin is Zinc with a very thin copper coating. Not an error. Welcome to CT.

 

It depends on the environment it's found in.
Out in the open it is fine. Stored in a jar or container is fine. But exposed to the environment will cause the zinc rot.

 

Oh okay... Funny enough I never find anything I think are errors in my change

 

Here are Metal Detecting Cents with Zinc Rot that I have found..

 

They are few and far between. You are more apt to find quarters with die chips and cracks in your pocket change.

 

I've seen those in a different thread I made

 

Are you sure that's zinc rot? Lol and then some. I have some of those.

 

These do look more like solid corrosion domes (zinc rot) rather than hollow plating blisters.

 

I have one also , but it's next to the d .. it looks like d-