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<p>[QUOTE=&quot;Forkeh, post: 1274281, member: 31745&quot;]That just doesn&#039;t make cents (hahaha bad coin pun)&nbsp; to me. Silver is significantly heavier than copper. If the two coins weight the same, then the 80% silver variety has to have a smaller mass. It&#039;s the only way that could possibly work. Plus the density would be completely different. If this is the case, you could tell the difference with a specific gravity test, if you could determine the specific gravity of either dime (or something else of the same weight, volume, and density....try googling it). I&#039;m sure there are other ways too. Like I said the two dimes would have to have completely different densities, and there are tools to measure that. </p><p><br /></p><p>I&#039;d say it&#039;d be more accurate to say that there is no easy or practical way to tell the difference, unless you happen to be a chemistry or physics professor with access to lab equipment.[/QUOTE]</p><p><br /></p>

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