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<p>[QUOTE=&quot;GDJMSP, post: 2234080, member: 112&quot;]Something to think about. Let&#039;s imagine that this is a cross section of the coin.</p><p><br /></p><p>_________________</p><p><br /></p><p>_________________</p><p><br /></p><p>Now imagine that when a coin is struck the metal flows thus creating luster. If greatly magnified that luster looks something like this.</p><p><br /></p><p>/\/\/\/\/\/\/\</p><p><br /></p><p>A series of peaks and valleys created by the flowing metal. So instead of a straight and flat line on top and bottom of the coin you have that uneven surface of peaks and valleys. But to the naked eye it appears to be straight and flat. But what it does in reality is increase the surface area of that coin immensely because you are measuring up and down each of those peaks and valleys, not straight across the top.</p><p><br /></p><p>Now, since toning only occurs on the very outer layer of the metal, and at the molecular level, only the very tip of those peaks, and the very top layer of the metal following the peaks and valleys up and own, is exposed to the air and only that tiny portion, the very surface layer, is even capable of toning for every other molecule of metal is below that surface and not exposed to the air.</p><p><br /></p><p>Got the picture in your mind ?</p><p><br /></p><p>OK, if only the impurities, the copper, silver, and other trace metals, in the alloy are capable of toning, try to imagine what the odds are of all those impurities being concentrated only at the very top layer of the metal. Go back to the first illustration, look at it, and try to imagine all of the impurities being concentrated at the very top and bottom lines of that illustration - and nowhere else throughout the thickness of the coin. For that is what it would take for a coin like that to tone like that. Remember, only 10% of the alloy is not pure gold.</p><p><br /></p><p>The toning on that coin covers almost the entire coin. And if only the impurities tone how else could there be that much toning on the coin unless all of those impurities were concentrated in the very top layer of the molecules of that metal ?</p><p><br /></p><p>Does anybody really think such a thing is possible ? Do you think it is probable ?</p><p><br /></p><p>If you say no, then the only possible conclusion is that gold tones.</p><p><br /></p><p>Now imagine the same thing happening with a coin that is .986 gold. Or imagine it happening with a coin that is .999 gold. I can show you pictures of both examples - toned.[/QUOTE]</p><p><br /></p>

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