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<p>[QUOTE=&quot;Leadfoot, post: 1334646, member: 2972&quot;]Have you tried the &quot;ring test&quot;?</p><p><br /></p><p>That said, specific gravity (weight and volume) should give you the answer, but will take some specialized equipment to derive.</p><p><br /></p><p>You could also use the old &quot;bite test&quot; -- but please check with your dentist first.&nbsp; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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