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<p>[QUOTE=&quot;SorenCoins, post: 2801700, member: 73708&quot;]Yes. Within the album is trace sulfur. When silver comes in contact with sulfur, it reacts to form silver sulfide, it is black silver tarnish when thicker. Hydrogen sulfide in the atmosphere causes toning too. Sometimes people leave coins in windowsils to heat up and accelarate the reaction. The science behind it is very complicated but I could try to explain it to you the best I can.[/QUOTE]</p><p><br /></p>

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