Ask The Experts
Ask The Experts - This low-grade ore is not worth processing
February 2019 by Chris Ralph
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
Q: Can you please tell me about diamond fluorescense?
Ask The Experts—Is it possible for a mountain range to have good lode gold deposits and yet the area streams not carrying like deposits of gold?
Q: Is it possible for a mountain range to have good lode gold deposits and yet the area streams not carrying like deposits of gold? Or do the two go hand-in-hand?
The Portable XRF Gun
While there is no metal detector that will see only gold, there is a device that can reliably distinguish gold from lead, copper, iron or other metals. It is an X-Ray fluorescence tester, sometimes called an XRF gun.
Ask The Experts—Difference between a Geiger counter and scintillator
Would you explain the difference between a Geiger counter and a scintillator and how they operate in uranium prospecting?
Ask the Experts
Q: How do metal detectors work around precious metal ore bodies?
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The Bawl Mill
• Ask The Experts - Do I need something other than a fire assay for PGMs?
• 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
