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<p>[QUOTE=&quot;yakpoo, post: 1101750, member: 18157&quot;]I believe you, but I would bet $$ it&#039;s not oxidation with gold...maybe something else, but not gold. I&#039;ve seen a bunch of gold nuggets (large and small)...no red spots on them! ...do you know of any? If so, I stand corrected.</p><p>&nbsp;</p><p>I was thinking chlorine since it&#039;s used in the refining process and I wouldn&#039;t be surprised if some residue remained in the metal...but if the spots appear sometime after being placed in an IS container, the sulpher dichloride theory certainly comes into question.</p><p>&nbsp;</p><p>I don&#039;t know...I&#039;ll watch with interest to see what you find out. :hatch:</p><p>&nbsp;</p><p><b>EDIT: </b></p><p>&nbsp;</p><p>One more thing, in the picture <b>Rocket</b> posted, the red spot appears to have a dark nucleus, from which the redness (toning) appears to be spreading. </p><p>&nbsp;</p><p>That dark spot isn&#039;t part of the coin&#039;s design. Could it be some foreign substance that is reacting with the gold...or something within the gold?[/QUOTE]</p><p><br /></p>

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