Is there a way to tell if the rainbow toning on a silver coins is faked? I recently viewed a youtube video about how to anodize silver and you can basically change the color of silver based on how long you put a current through it while it is soaking in a chemical solution. You can even give it a rainbow effect of several different rainbow colors. Since rainbow toned coins often sell for a premium I wondered if there would be a way to spot a fake rainbow toned coin or if it was natural toning caused by age? If so does this actually require testing the coin somehow or could you tell a fake from a high quality photo? Here is the link to the youtube video so you can see the process and the results. You will probably have to watch a advertisement before the video start, I did.
Would you say this is fake? It does look excessively colorful from other rainbow toned coins I've seen. Also the front of the coins has no toning at all. Is this normal? Would NGC grade a coin they suspected of fake toning or would they still grade it based on its other characteristics?
that morgan looks real. the picture might be "juiced" a little bit. that is sometimes the way a morgan tones. they can get some really wild colors. there are a few threads on here that show many of those wild morgans
This is my favorite toned Morgan. I watched it tone over the years in what was apparently a heavily sulfurous environment.
