Ask The Experts
Ask The Experts—Extraction of micro gold from black sands
October 2011 by Chris Ralph
I know big mining companies use cyanide and other leach systems to recover gold from ore. Is this the only economically feasible way to recover the values?Ask The Experts
• Are these gold amounts large enough to interest a mining company?
Ask The Experts
Replacing cloth on a drywasher
Ask The Experts—Precious metals in water?
How can I determine if there are precious metals in the groundwater?
Ask The Experts
If it's gold, how should I clean it?
Ask the Experts
• Where would I find a map for the Western states on high silica sand deposits?
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