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<p>[QUOTE=&quot;davidh, post: 508538, member: 15062&quot;]Is it strongly magnetic - does it jump to the magnet when it comes near - or weakly magnetic - is it just barely hanging onto the magnet?&nbsp;&nbsp; </p><p><br /></p><p>Since it should be silver and copper and these metals aren&#039;t magnetic, the only explanation is that some ferrous metal somehow got infused into the core, or possibly the outer cladding.&nbsp; Maybe a smaller magnet placed against various parts of the coin would tell you something.&nbsp; </p><p><br /></p><p>You could attach a steel rod or screwdriver to the magnet and then touch the rod against the coin at different places, including the edge, to see if there is a localized area of attraction.&nbsp; That would help determine if there is an impurity in the coin.[/QUOTE]</p><p><br /></p>

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