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<p>[QUOTE=&quot;-jeffB, post: 4837178, member: 27832&quot;]They sure do. Most coin acceptors rely on the size, <b>weight</b>, and <b>magnetic properties</b> of a coin to determine whether it&#039;s acceptable or not. Silver differs from copper-nickel clad in weight (it&#039;s heavier) and magnetic properties.</p><p><br /></p><p>More accurately, <i>electro</i>magnetic properties -- moving a conductive object through a magnetic field produces &quot;eddy currents&quot; in the object, which produce a magnetic field opposing the external one. The more conductive the material, the more pronounced the effect, and silver is the most conductive material under normal conditions.</p><p><br /></p><p>The main event that got me back into the hobby was encountering someone at a CoinStar trying to dump a jar full of mostly silver change into the machine. The machine was having none of it. (Or maybe it was having some, but it was rejecting most.) I was happy to help the guy with his problem.[/QUOTE]</p><p><br /></p>

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