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<p>[QUOTE=&quot;Conder101, post: 3987439, member: 66&quot;]It means that further tests must be conducted to confirm that it really is copper, because appearances can be deceiving.&nbsp; A quarter that is &quot;clearly copper&quot; from every angle would be very suspicious because missing clad layer almost never occur on both side of a coin, and if they do, the piece is almost invariably severely underweight.&nbsp; Two things that can cause a quarter to&nbsp; appear &quot;clearly copper) when it isn&#039;t are environmental damage, or someone copper plating it.&nbsp; Both of these would most likely be unmasked by an XRF gun test as it would return a high nickel content result.[/QUOTE]</p><p><br /></p>

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