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<p>[QUOTE=&quot;Oldhoopster, post: 2871376, member: 84179&quot;]Bronze disease is a reaction where copper in the coin react with chlorine/chlorides and forms a copper chloride.&nbsp; Chlorine can come from a lot of different sources.&nbsp; This is a self sustaining reaction and will continue to eat away at newly exposed copper, until either all the chlorides are removed or the copper is gone.</p><p><br /></p><p>Verdigris is a catch all term for organic junk that forms on the surface of a coin.&nbsp; It may or may not cause damage to the original surface.&nbsp; Depending on the composition, distilled water, Acetone, Xylene, all, or none may remove it.</p><p><br /></p><p>I do not consider inorganic deposits such as horn silver, rust, Bronze disease, etc as verdigris, but will not complain if others do.&nbsp; Just my personal preference</p><p><br /></p><p>I have never used Verdi-Care, but based on posts from Doug and others whose opinions I respect, it is a very good product.</p><p><br /></p><p>Hope that helps[/QUOTE]</p><p><br /></p>

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