2016-D penny environmental toning causing halographic shadow

Looking straight at the obverse side theres no casting. When rotating and viewing from angles the shadow shows up. Its amazing to look at.

 

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When at a angle the color changer on camera. Its odd

 

I've seen these in another thread.

 

could be some chemical reaction with the copper under specific circumstances.

 

That coin has been cleaned with a harsh chemicals

I only said that because I spilt a chemical for removing copper staining on some copper cent and it made it look that way

 

A little lemon juice and a little time and bingo! That’s what you get.

Reed.

 

Lol well i may have got a little excited over nothing but i love the look.

 

The penny only look like that on a flash photo. Other then the shadowing its the same color tone as the others. The camera does not justice.