Ask The Experts
Ask The Experts - Geophysics and gold deposits
June 2019 by Chris Ralph
Ask the Experts
• Using drywashers to work desert gravels
Ask the Experts: Ionizing mercury
Q: What exactly does "ionizing" mercury mean?
Ask The Experts—Precious metals in water?
How can I determine if there are precious metals in the groundwater?
Ask the Experts
Gold and silver in Pennsylvania
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.
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June 2019 (Vol. 88, No. 10)
• The Bawl Mill
• Legislative and Regulatory Update
• Ask The Experts - Can you provide information on gold in Ghana?
• Ask The Experts - Do these items qualify as mechanized equipment?
• Ask The Experts - EPA Method 6020 testing
• Ask The Experts - New detector or stick with the old?
• The Value of Old Patches
• A 'Rare' Opportunity for America
• Tips for Cleaning Gold Nuggets
• How Long Does It Take to Find and Recover An Ounce of Gold?
• Gold Prospecting for Better or Worse: In A Tight Spot
• Detecting Wet Ground Yields More Fun Than Gold
• Over The Divide: Jim Straight, 1930-2019
• Beach Mining for Placer Gold
• Reno's 1872 Time Capsule Includes Gold Rush Lore
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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PLP Update
• Comments Needed On Pebble Project Draft EIS







