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<p>[QUOTE="brg5658, post: 1866989, member: 29751"]While this is true, it's not exactly something that's very easy. To do it appropriately (at least that I've seen) you need to have a very precise way of measuring volume displacement. That usually means submersing the piece in water, measuring the amount of water displaced. Then weighing the piece in grams. This will allow you to get the grams / cubic centimeter density of the metal. </p><p><br /></p><p>The ratio of the density of the metal to the density of water is the "specific gravity" (also called the relative density). But you can ignore that part, and just compare the density of the metal you find to the density of known metals. Based on the tables I can find, white metal has a density of 7100 kg per cubic meter. Silver has a density of 10490 kg per cubic meter (<a href="http://www.csgnetwork.com/specificgravmettable.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.csgnetwork.com/specificgravmettable.html" rel="nofollow">link here</a>).</p><p><br /></p><p>But, as I already said -- while this test will give you an idea of the metal content -- it is quite laborious and (quite frankly) not very feasible for a large quantity of medals.[/QUOTE]</p><p><br /></p>
[QUOTE="brg5658, post: 1866989, member: 29751"]While this is true, it's not exactly something that's very easy. To do it appropriately (at least that I've seen) you need to have a very precise way of measuring volume displacement. That usually means submersing the piece in water, measuring the amount of water displaced. Then weighing the piece in grams. This will allow you to get the grams / cubic centimeter density of the metal. The ratio of the density of the metal to the density of water is the "specific gravity" (also called the relative density). But you can ignore that part, and just compare the density of the metal you find to the density of known metals. Based on the tables I can find, white metal has a density of 7100 kg per cubic meter. Silver has a density of 10490 kg per cubic meter ([URL='http://www.csgnetwork.com/specificgravmettable.html']link here[/URL]). But, as I already said -- while this test will give you an idea of the metal content -- it is quite laborious and (quite frankly) not very feasible for a large quantity of medals.[/QUOTE]
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