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<p>[QUOTE=&quot;antique85, post: 4293233, member: 7651&quot;]Thank you for asking this. </p><p>Am I doing this wrong?</p><p>The company that sold me the acid test kit included directions which stated to test for silver put a small notch deep enough to cut through any plating and apply a drop or two of the acid solution. Wait 20 to 30 seconds. There was NO warning-- e.g. do not leave on too long will damage piece. The directions state the acid will turn different colors to indicate the grade of silver. For gold, the directions say to rub on stone and then apply acid to stone where mark is. I even wonder if vigorous rubbing on stone could damage the gold. Yikes.[/QUOTE]</p><p><br /></p>

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