Tint Nickel

Nickel does tone. Not entirely sure how it does (i.e., what kind of chemical reaction takes place and what the resulting product is), but they do tone. Could be toning...but pics would be nice.

I do a lot of metal detecting and usually find a few hundred or so coins made of nickel per year. In sand they don't seem to tone much, however in dirt and soil you get some beautiful toned nickel coins. I probably have 300 or so in different denominations in my toned collection. From half moon tones to bright purple and some with every color under the sun on them. That collection is my prized one due to the great eye appeal they offer.

I've found nickel coins in clay and it really varies as to what happens to it, be it the coin being eaten by the acidic value of the clay or the odd time you get a nice toned one, but not often. Same as in the water, dependent on the acidic value of it, either get eaten coins or toned.

Would love to see pics of them.

yes well brought up point in regard to the copper Kanga, because you can nicely tone copper using heat if you execute it the right way.