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<p>[QUOTE=&quot;thomas mozzillo, post: 4575605, member: 75914&quot;]The coins my friends and I cleaned would occasionally get a grayish/silvery color because of the reaction to the chemical. We didn&#039;t even know what chemical we used. There was a factory nearby and on the street we&#039;d find small, soft, gray pebble sized pieces that we rubbed onto the coins then tried to wipe it off and sometimes the coin remained that gray/silvery color. Don&#039;t know why. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie2" alt=";)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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