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<p>[QUOTE=&quot;Insider, post: 2872249, member: 24314&quot;]lrbguy, posted: &quot;<b><span style="color: rgb(255, 0, 0)">At this point that&#039;s all I intend to say on the subject</span></b>.&quot;</p><p><br /></p><p>I don&#039;t know what the rest of you reading this thread think but this is my take:</p><p><br /></p><p>1. The chemical composition of the deposits on our coins has been analyzed and published.&nbsp; These compounds have names.&nbsp; Unfortunately, all sorts of names are tossed around, often for the same substance, and often not correct.</p><p><br /></p><p>2.&nbsp; I think the term &quot;bronze disease&quot; has been locked down specifically as to the chemical reaction, its composition, its effects on coins, and how to minimize it.</p><p><br /></p><p>3. Verdigris is another thing.&nbsp; Someone posted it is green, hard, and calls it <b><span style="color: rgb(0, 179, 0)">Malachite</span></b>. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie52" alt=":hilarious:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie52" alt=":hilarious:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie52" alt=":hilarious:" unselectable="on" unselectable="on" /> That&#039;s what causes problems - misinformation.&nbsp; Verdigris and Malachite are not the same thing.</p><p><br /></p><p>4. Apparently, &quot;verdigris&quot; and &quot;patina&quot; have become merged to describe a hard coating on alloys of copper.&nbsp; In my opinion that is unfortunate.&nbsp; In the good old days a &quot;patina&quot; was the hard green coating on ancients.&nbsp; Then its usage spread to toned coins of any composition as: &quot;This gold coin has a nice old patina.&quot;&nbsp; Back then, we used &quot;verdigris&quot; to describe the soft, green, residue or scum often seen on copper coins.&nbsp; It was easily removed with a rose thorn or acetone.&nbsp; The brass snap on my alligator key case (only used on special occasions) had to be wiped clean of this green scum before each infrequent use!&nbsp; Verdigris has a specific chemical composition.&nbsp; I don&#039;t know what the green scum was.</p><p><br /></p><p>5. Finally, I <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie30" alt=":bucktooth:" unselectable="on" unselectable="on" /> get a very sick feeling of loss and may even begin to doubt what a member posted when someone <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie33" alt=":cigar:" unselectable="on" unselectable="on" /> who appears to be informed <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie26" alt=":bookworm:" unselectable="on" unselectable="on" />about a topic we are discussing &quot;quits posting&quot; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie23" alt=":bigtears:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie23" alt=":bigtears:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie23" alt=":bigtears:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie23" alt=":bigtears:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie23" alt=":bigtears:" unselectable="on" unselectable="on" /> and leaves the thread. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" unselectable="on" unselectable="on" />&nbsp; IMO, it&#039;s very unprofessional and a sign that their opinion may not stand up to discussion.&nbsp; Hopefully, they will return.</p><p><br /></p><p>The truth is out there one way or another.[/QUOTE]</p><p><br /></p>

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