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<p>[QUOTE=&quot;GDJMSP, post: 1783791, member: 112&quot;]That&#039;s not a carbon spot. Though I will grant you that more than a few people do call any dark spot on a coin a carbon spot, but that doesn&#039;t mean that&#039;s what it is. </p><p>&nbsp;</p><p>Carbon spots are actually in the metal, not on the metal as this spot is. Carbon spots are typically quite small and they do not get bigger. They are caused by a speck of impurity in the metal alloy itself. And carbon spots can not be removed. While spots caused by environmental contamination sometimes can be removed, again, because they are on the metal and not in it.[/QUOTE]</p><p><br /></p>

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