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<p>[QUOTE=&quot;Detecto92, post: 1731255, member: 75105&quot;]I&#039;ve never been successful in cleaning silver coins with tarnx, it makes them &quot;porus&quot; and dull.</p><p><br /></p><p>It was something I did a few years ago anyway.</p><p><br /></p><p>Tonight, as I was putting the bottle back up, after cleaning some jewelry, I noticed it said &quot;for copper&quot;, amongst the other metals. </p><p><br /></p><p>I took a 1969 cent, that was UNC, but had darkened a bit. </p><p><br /></p><p>Threw it in a dish of tarn-x for 2 seconds, and patted it dry.</p><p><br /></p><p>The brown was gone, mint red was back. I compared it to a mint red penny from 2013, no variation in color. </p><p><br /></p><p>The coin did not feel porus, no breaks in luster were present. </p><p><br /></p><p>Even under high magnification, there was no evidence of cleaning.</p><p><br /></p><p>Could this process be used to convert MS Brown cents to MS Red? I&#039;m not sure. </p><p><br /></p><p>If the brown is too brown, it will pale in color, but a slight to mild brown appears fine. Your results may vary. </p><p><br /></p><p>I also noticed it does not work well at all on circulated coins.</p><p><br /></p><p>This is a Centavo from the 50s that had turned brown. Tarnx made it look like new.</p><p><br /></p><p><img src="http://i833.photobucket.com/albums/zz257/Phototaker_2010/Ancient%20Coins/ea3d05af-4ad8-41bb-809a-f9774664813d.jpg?t=1371955958" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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