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<p>[QUOTE=&quot;Ordinary Fool, post: 2672815, member: 85318&quot;]Almost true, and, somewhat misleading. Nickel is far more reactive than copper. Copper is only slightly more reactive than silver or gold. It is the third least reactive metal that exists, silver second and gold the least reactive. </p><p><br /></p><p>Many other much more reactive metals simply don&#039;t manifest what clearly appear to be heat affected zones of &quot;toning&quot; and go thru far more varied and adverse conditions than pennies. </p><p><br /></p><p>So why are these spots that appear to be HAZ&#039;s, not appear on nickels or the dollar coins? I haven&#039;t seen them on the nickels at all and will own I haven&#039;t checked enough gold hue&#039;d dollar coins to determine if they do or not.</p><p><br /></p><p>Nickels do go thru a drier yet are not electro-plated.[/QUOTE]</p><p><br /></p>

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