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<p>[QUOTE=&quot;desertgem, post: 2253279, member: 15199&quot;]Mikey, there are several type of plating processes, and this would probably rank in the top 10 questions people ask, determined to show they have an off-metal coin. This chemical process (below link) is probably done 5,000 or more time across the US each school year in chem class.</p><p><a href="http://blog.chembark.com/2012/09/21/the-copper-to-silver-to-gold-alchemy-demo/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://blog.chembark.com/2012/09/21/the-copper-to-silver-to-gold-alchemy-demo/" rel="nofollow">http://blog.chembark.com/2012/09/21/the-copper-to-silver-to-gold-alchemy-demo/</a></p><p><br /></p><p>The surface shows no plating lines, bubbles, or electrode marks ( as there are none), and the layers of metals are so thin, the difference in in micrograms and no significant change in weight is noticed. The students show off their result to friends , family, some try to sell on craigslist and ebay and show here as a means to buy a new life, but usually the cents end up in commerce and they pop up again and again. One person believed so strongly, it was sent off for expensive metallurgy tests before accepting. So when you say they sound bored, it may be such, but they are almost certain to be correct.[/QUOTE]</p><p><br /></p>

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