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<p>[QUOTE=&quot;mirana, post: 9756885, member: 79705&quot;]Isn&#039;t 10ct the lowest you can go on acid tests? Because 9ct isn&#039;t considered &quot;gold.&quot; So perhaps at 9 the acid reflects &quot;not gold.&quot;</p><p><br /></p><p>XRF is the way to go, if you can. It can pretty accurately see if something is suspected as plate too.[/QUOTE]</p><p><br /></p>

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