Ask The Experts - Do I need something other than a fire assay for PGMs?
February 2019 by Chris Ralph
I 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?
Sampling and mining a historic mining claim
Q: How much gold do I have per ton and how can I improve my assay method?
Q: Exactly how does amalgamation work? Does it “melt” the gold (or copper, or silver, etc.) and form an alloy? If one leaves a piece of gold in mercury, will the entire sample become an amalgam (combination) of gold and mercury? Or does it only affect the surface...
The Bawl Mill • Ask The Experts - This low-grade ore is not worth processing • Placer Gold Deposits of New Mexico • The Hunch • Resurrecting An Old Hard Rock Mine—A Series of Small Victories • The Basics of Exploration Leases and Contracts—Part I • Gold Prospecting for Better or Worse: A Long Hike • Mutiny on The Mason • Who Jumped Whose Claim First? • The Value of Evidence • Over The Divide: Charles "Chuck" Cushman • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices