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<p>[QUOTE=&quot;Leadfoot, post: 977602, member: 2972&quot;]Another assumption without basis in experiment and long term observation.</p><p><br /></p><p>The natural process occurs via gasses.&nbsp;&nbsp; Your process uses (presumably) a liquid.</p><p><br /></p><p>How you can argue they are similar in the short term, much less the long term, is completely beyond me, and I am hardly ignorant of chemistry or physics.</p><p><br /></p><p>Sure they both use H2S, but they apply it at different rates and through different methods.&nbsp; In addition, there are other oxidations that occur on the surface of naturally toned coins (chlorides, for example, rather than sulfides), that say to me the results, particularly after time, will be different.[/QUOTE]</p><p><br /></p>

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