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<p>[QUOTE=&quot;desertgem, post: 1531807, member: 15199&quot;]A specific gravity measurement can give evidence that would have to be considered, as long as it doesn&#039;t reach the same content ( i.e. a plating of such weight to equal the same proportion of a composite coin, which would be a thick plating)</p><p><br /></p><p>This is a relatively inexpensive SG device, especially if you have a digital scale, and not bad if you also need such a scale.&nbsp; T first listing). The second listing is too space using foe me. </p><p><br /></p><p><a href="http://www.mineralab.com/Specific%20Gravity.htm" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.mineralab.com/Specific%20Gravity.htm" rel="nofollow">http://www.mineralab.com/Specific%20Gravity.htm</a>[/QUOTE]</p><p><br /></p>

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