Cyanide-Free Gold Separation
February 2011 by Chris RalphSome ores—mostly those with a high free gold content—are very amenable to gravity concentration. Well oxidized ores containing coarse gold are usually best for non-cyanide processes. Ores with significant sulfide content may require the...
The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.
• Making a noisy dredge more quiet
...your sampling procedures should not be designed to catch gold your mining technique will never recover.
While mapping, I also found rock chips in the soil that were characteristic of the same wall rock alteration that occurs adjacent to the known lodes in the greenstone belt.
Ore testing and other advice for starting up a mining operation.
Please note that new mining claims filed on or after September 1, 2019, will be subject to the new fee schedule.
How do I set up a Miller table?
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