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<p>[QUOTE=&quot;GDJMSP, post: 2559733, member: 112&quot;]I&#039;ve seen verdigris on many different coins with many different looks. It can be hard and crusty, soft and powdery, flaky, even soft and fuzzy looking like in a couple of these pictures. And I&#039;ve seen in on more copper pipes and fittings that I can count - with all of those same looks. </p><p><br /></p><p>And the only thing I&#039;ve ever been able to determine is that verdigris goes through different stages, depending on conditions and how long it&#039;s been forming. </p><p><br /></p><p>But if you want to know for sure what it is, scrape off a little and take it to a lab and get it analyzed. But I&#039;ll bet ya dollars to donuts they tell it&#039;s verdigris.[/QUOTE]</p><p><br /></p>

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