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<p>[QUOTE=&quot;Ken Dorney, post: 3203302, member: 76086&quot;]I&#039;m no metallurgist, though there are some collectors who actually are (but I dont think they are on CT).&nbsp; Does copper and bronzes crystallize?&nbsp; I dont know, maybe, probably, positively?&nbsp; But its not what we would really think anyway.&nbsp; Most of what the article you point to is relegated to silver specifically.&nbsp; And in most experiences (strangely, there is definitely a PhD paper in there somewhere) with Greek silver fractions specifically.&nbsp; It rarely occurs in Roman coinage.&nbsp; Still, I dont see it on this coin, though there are some tiny marks which might suggest it.&nbsp; Who know?&nbsp; As I said I am not a metallurgist or chemist.[/QUOTE]</p><p><br /></p>

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