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<p>[QUOTE=&quot;David@PCC, post: 2522791, member: 80556&quot;]The short answer.... you can&#039;t. Roman coins in particular used a variety of metals and the only way to know it&#039;s composition would be to do a metallurgical analysis, which unfortunately would destroy some of the coin. RIC I can&#039;t remember which volume, gave the composition of some coins and they were a hodgepodge. Also don&#039;t forget our friend orichalcum.</p><p>[ATTACH=full]538125[/ATTACH] [ATTACH=full]538126[/ATTACH]&nbsp; </p><p>You can tell these coins by their golden outer layer, and corrosion reveals a reddish/orangish center.[/QUOTE]</p><p><br /></p>

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