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<p>[QUOTE=&quot;Ryro, post: 3271406, member: 91461&quot;]Beautiful find! I have some black or &quot;Horn&quot; silver and really enjoy the look. I stole this from another thread to answer your question:</p><p>Found a description of black patina on <a href="http://www.forumancientcoins.com/numiswiki/view.asp?key=Patina" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.forumancientcoins.com/numiswiki/view.asp?key=Patina" rel="nofollow">fvrvm</a> cited below:</p><p>&quot;Silver coins do not develop a patina. Silver darkens with age, which is referred to as <a href="http://www.forumancientcoins.com/numiswiki/view.asp?key=Toning" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.forumancientcoins.com/numiswiki/view.asp?key=Toning" rel="nofollow">toning</a>. Thick black silver oxides, similar to patina, can develop in areas on a coin or cover it entirely. This is called horn silver. Horn silver is exceedingly difficult to remove and under the protruding oxide, the silver is severely damaged because the oxide is made up mostly of the silver of the coin.&quot;</p><p>Here&#039;s an example of mine:</p><p>[ATTACH=full]862895[/ATTACH][/QUOTE]</p><p><br /></p>

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