Is there simple way to process gold from higg grade ores/materials

[jonesindy]

Does anyone have an idea how to recover gold dust that could been deliberately mixed with soil, cement, sand to form natural looking rocks? I have done a lot of excavations recently in search for a major treasure buried during WW2. Just lately, I discovered that the extensive 'bunker" materials were of gold-bearing materials. I can still recover 10% of the gold-ore bearing materials now because I discarded most of them already. I suspect that gold dust was mixed with clay/sand/concrete to form boulders, and these were piled deep underground.

Thanks,

Jonesindy

 

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[aussco999]

Hey Jonesindy:

Yes, there are several good ways to recover micro-fine gold from soil, cement, sand, rocks.... It would be the same methods used for either placer or hardrock mining. Get more info on your subject material, including maybe some small samples, the total amount of material to process and let me know. I'll help you with what ever recovery information you might need.

Good luck,

John

 

[jonesindy]

John,

Thank you John. I will attend to the things you suggested in time. I do international development work as a profession and wish to be able to clear my desk all projects before I get to TH again.

Regards,

Jonesindy

 

[Ant]

We pan out the concentrates and extract the fines by mercury amalgamation. Then we extract it from the amalgam, easy as pie, just don't inhale the mercury fumes if you plan to burn the mercury off, it always best to use a retort.