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<p>[QUOTE=&quot;desertgem, post: 3362686, member: 15199&quot;]Without the presence of moisture for reactions, I am not certain how it could remain active? A near pure copper coin in New Orleans has a very short life in the soil due to corrosion , yet a similar near pure copper coin in high deserts might not for many centuries.&nbsp; Few reactions we can see as coin corrosion can exist without water liquid/vapor. </p><p><br /></p><p>Some corrosion such as on coins are less thick than a sheet of printer paper, and even though I have used scalpels for many years&nbsp; on softer material, I would find it hard to use it on metal without at least microscopic damage which can serve as active sites of further molecular corrosion when moist conditions are there.</p><p><br /></p><p>But different thoughts for different people.&nbsp; &nbsp; Jim[/QUOTE]</p><p><br /></p>

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