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<p>[QUOTE=&quot;cladking, post: 9529, member: 68&quot;]Most modern US and world coins are cu/ni.&nbsp; Nickel is highly magnetic and expensive but loses its magnetic properties with even a small amount of alloy.&nbsp; The cu/ni clad US coins are mostly copper which is very weakly magnetic.&nbsp; The only zinc US coin is the cent.&nbsp; There are several steel, iron, or steel clad coins which are current world wide.&nbsp; These are often avoided because they are magnetic and as such can be magnetized or because of the trouble with rusting.&nbsp; Stainless steel is sometimes used also but does not take a strike well and wears dies quickly.[/QUOTE]</p><p><br /></p>

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