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<p>[QUOTE=&quot;desertgem, post: 1502360, member: 15199&quot;]I think that a dime with no clad ( just the core) should weigh about 1.52 grams +/- based on nickel and copper having very close to the same sp. gr. ( Ni =8.930, copper = 8.800 ). This page from the USmint, gives the specifications.</p><p><br /></p><p><a href="http://www.usmint.gov/about_the_mint/?flash=yes&amp;action=coin_specifications" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.usmint.gov/about_the_mint/?flash=yes&amp;action=coin_specifications" rel="nofollow">http://www.usmint.gov/about_the_mint/?flash=yes&amp;action=coin_specifications</a></p><p><a href="http://www.usmint.gov/about_the_mint/?flash=yes&amp;action=coin_specifications" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.usmint.gov/about_the_mint/?flash=yes&amp;action=coin_specifications" rel="nofollow"><br /></a></p><p>so if nickel is only in the clad part and is 8.33% of the total weight 2.268g =&nbsp; .1889 grams of nickel. since clad has 25% Ni and 75% copper, the weight of the copper in the clad layer is&nbsp; 3x .1889 = .5667 grams for a total&nbsp; clad weight of&nbsp; .7556 grams.</p><p><br /></p><p>A cladless copper core&nbsp; should weigh 2.268g - .7556 grams or&nbsp; 1.524 grams +/- tolerances.</p><p><br /></p><p>Tolerance is harder to calculate as it is for the weight of the entire coin, not just one part ( clad, core), so I would say that the tolerances&nbsp; ( +/- 0.09 grams) which = 3.968% ( most gov figures use rounding to 4% tolerances), a &quot;core only&quot; unclad dime should theoretically be the 1.524grams +/- 4% ( +/- 0.061) or&nbsp;&nbsp; a ( 1.463&nbsp; to&nbsp; 1.585 ) range.</p><p><br /></p><p>If one wanted a more accurate estimate, then use the specific graavities in the calculations, Just seemed a little too much for me as I do not feel that is the case with this coin from the photos.</p><p><br /></p><p>jim[/QUOTE]</p><p><br /></p>

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