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<p>[QUOTE=&quot;WuntBeDruv, post: 24898417, member: 115520&quot;]Any good scientist would show their working when writing a scientific paper on how an experiment ended up. I think you are taking this personally when that isnt what this is about. At the end of the day you&#039;re telling me a method works, I&#039;m asking the context behind it working and understanding how the process operates when from my reading there seem to be holes in the science. </p><p><br /></p><p>You&#039;ve handled the coin above and I haven&#039;t. Having said that, while the colour is bright the green doesn&#039;t look particularly powdery. As I&#039;m sure you&#039;re aware, hard bright green deposits can occur on coins which are totally inert and not active. I have stycas in my collection with these on and they are rock hard deposits overlying pitting. This is not the same as active corrosion or &#039;bronze disease&#039;.[/QUOTE]</p><p><br /></p>

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