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<p>[QUOTE=&quot;900fine, post: 683259, member: 6036&quot;]They can list it as anything they want... that don&#039;t make it so. <b>There&#039;s no such thing as absolutely pure gold coins, even today</b>... and certainly not with older technologies. So yes, I agree... horse puckey.</p><p>&nbsp;</p><p>I have agreed that gold can react... though the undeniable fact is it reacts slowly, rarely, or not at all.</p><p>&nbsp;</p><p>It&#039;s reasonable to suggest that there are surface issues (impurities, oils, atmospheric contaminants) which <i><u>in part</u></i> cause the color shift on gold coins. It&#039;s reasonable to consider that <i><u>some</u></i> of the toning color comes from a reaction with something other than gold.</p><p>&nbsp;</p><p>All agree that gold coins - even .9999 fine coins - can have some toning. Empirical evidence trumps theory, and the evidence is clear - gold coins exhibit toning. Seems like we&#039;re in agreement, not conflict.[/QUOTE]</p><p><br /></p>

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