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<p>[QUOTE=&quot;desertgem, post: 2233212, member: 15199&quot;]There are several chemistry sites that explains how to turn copper cents into &quot;silver&quot; [zinc plated] cents and then the &quot;silver cents&quot; into &quot;gold &quot; cents [brass plated]</p><p><a href="http://chemistry.about.com/od/chemistryhowtoguide/a/goldsilverpenny.htm" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://chemistry.about.com/od/chemistryhowtoguide/a/goldsilverpenny.htm" rel="nofollow">http://chemistry.about.com/od/chemistryhowtoguide/a/goldsilverpenny.htm</a></p><p><br /></p><p>&quot;Heating the penny fuses the zinc and copper to form an alloy called brass. Brass is a homogeneous metal that varies from 60-82% Cu and from 18-40% Zn.&quot;</p><p><br /></p><p>I know some error sites sell &quot;Brass cents&quot;, but the only way I know of telling if mint made or high school chem lab made, would be very expensive or damage the coin. The number of intentionally made &quot;brass&quot; cents far outnumber the possible mint made ones.[/QUOTE]</p><p><br /></p>

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