Coin Toning - Coin Community Forum

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Author	Replies: 3 / Views: 1,127
ClearwaterCoins Valued Member United States 177 Posts	Posted 10/06/2007 10:15 pm What could be causing my Modern Commemoratives to be turning a golden yellow color. I took them out of my safe the other day to show them to a friend and discovered the toning. They are still in the original government packaging. I checked a few of my other coins and it is not happening to them ie: Silver Eagle Proofs. It only seems to be happening to the commemoratives dated before 1990. Report this Post to the Staff

Metalman Pillar of the Community United States 7123 Posts	Posted 10/06/2007 10:53 pm Yellow is a normal color and the first in a progression of the high silver content coins,, Mint packaging is cool but it is not airtite nor stable and something perhaps even the card board boxes and paper envelopes that the other coins or for that matter these coins are stored in are gassing the interior of your safe . Metalman Report this Post to the Staff
TheCoinfest Valued Member United States 83 Posts	Posted 10/08/2007 11:23 pm interesting enough, different silver coins like the British will turn different colors because of the different purity in there coins... Silver of course is toning because of the Sulfer and the reaction to outside elements and the mix of metals mixed with the silver...hence your purer bullion coins react differently than say a Three Cent Silver trime Report this Post to the Staff
just carl Bedrock of the Community United States 20753 Posts	Posted 10/09/2007 11:45 am I suspect Metalman fairly well covered the reason. Few things are air tight and a safe, when closed, locks in the air and moisture. Report this Post to the Staff
	Replies: 3 / Views: 1,127

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