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<p>[QUOTE=&quot;-jeffB, post: 24682455, member: 27832&quot;]A platinum core wouldn&#039;t yield nearly as much profit as a tungsten core. There are tungsten-core fake AGEs out there, and a gold bar would be even easier to fake.</p><p><br /></p><p>Besides, platinum is about 10% <i>denser</i> than gold, so the bar would end up either <i>heavier</i> or thinner than a genuine one! Tungsten&#039;s density is almost an exact match.</p><p><br /></p><p>XRF guns will have a hard time penetrating a thick layer of gold. This is one situation where I&#039;d expect an electromagnetic scanner (like Sigma) to be more useful. I&#039;m guessing it would be <i>possible</i> to produce a fake gold bar that would pass Sigma, but I wouldn&#039;t know how.[/QUOTE]</p><p><br /></p>

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