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<p>[QUOTE="Brett_in_Sacto, post: 2272956, member: 71510"]There are some (very expensive) XRF devices that can immediately tell what is in the metals. </p><p><br /></p><p>Example: <a href="http://www.ebay.com/itm/SPECTRO-XSORT-XRF-alloy-analyzer-X-Ray-Spectrometer-MICRO-3MM-SPOT-SIZE-GOLD-/311417445361" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.ebay.com/itm/SPECTRO-XSORT-XRF-alloy-analyzer-X-Ray-Spectrometer-MICRO-3MM-SPOT-SIZE-GOLD-/311417445361" rel="nofollow">http://www.ebay.com/itm/SPECTRO-XSORT-XRF-alloy-analyzer-X-Ray-Spectrometer-MICRO-3MM-SPOT-SIZE-GOLD-/311417445361</a></p><p><br /></p><p>I brought a bunch of mish-mash melted down silver to a guy that had one. He was able to sample big chunks (1-2 inches thick) and tell me the exact amount of silver in each. We also found that they were 62% silver, 1.8% platinum and 2.3% gold - so I scored when I sold him the scrap. (I gotta believe this was some sort of industrial or dental metal?) </p><p><br /></p><p>I paid $80 for almost 3 pounds of the stuff in a glass jar at a GSA auction. People thought I was nuts for buying melted slag and lead. It was labeled silver, and none of the pieces stuck to a magnet - so I gambled. I ended up selling the jar for $600 when all was said and done.</p><p><br /></p><p>The XRF gun was able to identify each piece and show the variance in the metal content. Some shows more, some showed less - so it was obviously a failed smelt at some point.</p><p><br /></p><p>VERY accurate. I want one, but it would cost me more than I'd ever be able to recover by using it.[/QUOTE]</p><p><br /></p>
[QUOTE="Brett_in_Sacto, post: 2272956, member: 71510"]There are some (very expensive) XRF devices that can immediately tell what is in the metals. Example: [url]http://www.ebay.com/itm/SPECTRO-XSORT-XRF-alloy-analyzer-X-Ray-Spectrometer-MICRO-3MM-SPOT-SIZE-GOLD-/311417445361[/url] I brought a bunch of mish-mash melted down silver to a guy that had one. He was able to sample big chunks (1-2 inches thick) and tell me the exact amount of silver in each. We also found that they were 62% silver, 1.8% platinum and 2.3% gold - so I scored when I sold him the scrap. (I gotta believe this was some sort of industrial or dental metal?) I paid $80 for almost 3 pounds of the stuff in a glass jar at a GSA auction. People thought I was nuts for buying melted slag and lead. It was labeled silver, and none of the pieces stuck to a magnet - so I gambled. I ended up selling the jar for $600 when all was said and done. The XRF gun was able to identify each piece and show the variance in the metal content. Some shows more, some showed less - so it was obviously a failed smelt at some point. VERY accurate. I want one, but it would cost me more than I'd ever be able to recover by using it.[/QUOTE]
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