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Gold Prospecting
Alluvial Gold Prospecting
Is there in microns a point beyond which gold is no longer recoverable
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<blockquote data-quote="G0lddigg@" data-source="post: 592966" data-attributes="member: 357"><p>simple answer is yes, there's alot of low grade sulphide rich ore out there that's just not practical to recover for the average prospector. i know of a mine in vic where the ore is less than 0.1 g/t the old timers processed some by paddock leaching before roast and cyanide but the yields were way to low to turn a profit. the guy whos running it now is able to extract the other products within the ore and is just in alittle profit but he had to invest millions in the processing plant whihc is house in a large warehouse built 2km from his mine. </p><p></p><p>i've taken geos to mines to sample in vic where they swore there was no gold in the pan at cleanup, but after dropping a gram of mercury into the pan then processing by retort we were able to show a 11 gram per tonne sample, you rally couldn;t see this stuff in the pan at all.</p></blockquote><p></p>
[QUOTE="G0lddigg@, post: 592966, member: 357"] simple answer is yes, there's alot of low grade sulphide rich ore out there that's just not practical to recover for the average prospector. i know of a mine in vic where the ore is less than 0.1 g/t the old timers processed some by paddock leaching before roast and cyanide but the yields were way to low to turn a profit. the guy whos running it now is able to extract the other products within the ore and is just in alittle profit but he had to invest millions in the processing plant whihc is house in a large warehouse built 2km from his mine. i've taken geos to mines to sample in vic where they swore there was no gold in the pan at cleanup, but after dropping a gram of mercury into the pan then processing by retort we were able to show a 11 gram per tonne sample, you rally couldn;t see this stuff in the pan at all. [/QUOTE]
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Gold Prospecting
Alluvial Gold Prospecting
Is there in microns a point beyond which gold is no longer recoverable
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