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<p>[QUOTE=&quot;bsting, post: 3248281, member: 36213&quot;]<font size="5"><b>The Specific Gravity Test</b></font></p><p>These next 4 tests are highly accurate in determining real vs. fake. The specific gravity test of silver is basically a ratio of densities and due to its chemical &amp; composition makeup should equal ~ 10.49, given by the formula below:</p><p><img src="http://www.silvercoins.com/wp-content/uploads/2014/07/specific-gravity-silver.png" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>This test will weed out those silver-plated or clad coins if they have a composition of some other base metal. You cannot change the density of metal and pure silver will always give a reading close to 10.49. To calculate this perform the steps below:</p><p><br /></p><ol> <li>Obtain dry weight of the silver coin or bar with an accurate scale to .01g</li> <li>Use a cup of water enough to fully submerge the silver into and measure its weight or reset the scale with it on.</li> <li>Tie some string around the coin and setup an apparatus to hold the coin</li> <li>Submerge the silver into the water and record the submerged weight minus the weight of the water &amp; cup.</li> <li>Divide the dry weight by the submerged weight to obtain the specific gravity of silver</li> </ol><p>This sounds official![/QUOTE]</p><p><br /></p>

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