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<p>[QUOTE=&quot;wcoins, post: 2965771, member: 32035&quot;]What is the best way to test metals? Acid test - is it reliable? Can it be fooled by thick plating? Or the XRF thing that tells you exactly the composition by percentage of each metal in alloy? Is there any way to test with 100 percent accuracy without cutting the thing in two? I bought a ring and seller says it&#039;s platinum but has no pt markings...so how can I make sure it&#039;s not just layered in platinum and underneath it&#039;s a cheap base metal?[/QUOTE]</p><p><br /></p>

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