No. An error (in numismatic terms) occurs at the mint. Toning is technically damage (which happens after leaving the mint). Also, nickel.
I figured but i just wondered if anything in the metal causes certain coins to get this toning while others never do. I've not seen many times nickels.
Well, the subject of toning can be quite controversial. Some people like it, some hate it. Toning can be natural or artificial. Natural toning takes many years and certain conditions. Artificial toning is done with various methods, gasses, etc to speed up the process. Your coin being so new and so colorful leads me to think it is artificial.
Despite being a new coin the toning is wonderful. Not an error but toning is a hot topic and sought after by many collectors. I'd add that one to my collection. Great find.
Same here..I have a pretty good collection of beautiful rainbow toned wheat cents and some Lincoln cents and I just love them. This is the first colorful, toned nickel I personally have come across so I held onto it. I thought it was kind of odd for it look like this after only two years. Perhaps it is not natural toning but it could be. I think I will go ahead and put it in a capsule and save it for the future.
Haha yea..I just noticed that a few minutes ago. I was in a store when i posted this and made this embarrassing mistake
How can I delete a tread I created? Somehow I posted this one twice. I am trying to edit the title as well.
keep it as a strange color toning collection. I collect toned coins too. this color looks very artificial. keep it anyways. have fun.
I don't believe natural toning is an error. However in this case, some agent was accidentally or intentionally applied to this coin, and it reacted with the copper/nickel alloy. For a nickel to get such a blue color in a short period of time is not an ordinary thing. It only costs 5 cents to hold onto it. You can't delete a thread. A moderator can if you created 2 of the same. You can edit the title, but there may be a time limit on that.