Ask The Experts—Separating platinum from sands using bubbles
October 2011 by Chris RalphI am trying to find any information about using bubbles to separate platinum from sands and small particles. I think it has to have a surfactant in the process. Do you know of this bubble tech?
Q: Aside from the softness scratch test and other methods of identification, what feedback would you have on identifying gold in hard rock that may be mixed with other metals that affect its color?
• Any suggestions about gold panning in Oregon?
Ore processing in California?
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?
The Bawl Mill • Legislative And Regulatory Update • Ask The Experts—Extraction of micro gold from black sands • Ask The Experts—Difference between a Geiger counter and scintillator • Then and Now: Is Gold Really Money? • Gold, Quartz & Chalcedony—Part I • Prospecting Australia—Part I • Oregon Dredge Permit Litigation Update • Gold From Black Sand Tailings • The Fine Art of Panning Heavy Sands • California State Gold Panning Championships • The Golden Days of Julian, California • An Expensive Lesson • Judge Denies Request To Delay Michigan Mine • Melman on Gold & Silver