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 - Who owns this historic mill and how do I handle possible mercury contamination?
Ask The Experts: What is a Spanish needle?
Some fellow in Texas was selling a Spanish needle—a dousing device used to recover minerals in the old days. Do you know anything about these?
Ask the Experts
Where to process high grade gold ore containing sulfides?
Ask the Experts
Good questions...from A to Z...
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