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<p>[QUOTE=&quot;joecoincollect, post: 2504181, member: 71338&quot;]So the terminal stage of toning, ie black color, is for all types of coins right? Not just silver I&#039;m assuming. Does that color spectrum I saw in here or somewhere else presented by a member apply to all metals? I&#039;ve never seen rainbow colors on a cent, or nickel, at least not as commonly as silver. When we think longterm, like centuries or even a millennium, will all coins of every metal type turn black without dipping? I would think it depends on environment, holder type, etc. The best bet I&#039;m sure would be gold. Sorry for all the questions, I just was thinking of all these things at the moment[/QUOTE]</p><p><br /></p>

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