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<p>[QUOTE=&quot;InfleXion, post: 1218343, member: 29012&quot;]If mine production were to stop today and all we had were existing supplies silver would be at least 7 times more rare than gold. As I&#039;ve also mentioned elsewhere the concept of epithermal deposition implies that due to the composition of silver it primarily exists near the surface, and will become increasingly expensive to mine as it becomes less abundant and less easily retrieved. This characteristic does not seem to apply to gold.&nbsp; </p><p><br /></p><p>I was thinking at first it could have something to do with the the weight and/or mass of the element during the planet&#039;s formation, but it seems more likely to do with silver being the best thermal conductor and the heat of a newborn planet boiling it to the surface. I&#039;ve seen a couple sites now refer analogously to it as &quot;froth&quot;.[/QUOTE]</p><p><br /></p>

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