Ask The Experts
May 2016 by Chris Ralph
• Any suggestions about gold panning in Oregon?
• Should I introduce mercury in the centrifugal bowl to aid gold recovery?
Hydraulic remnants or just lose material?
• How many parts per million make a project viable?
• Is the Spenceville Wildlife area open to prospecting?
Q: Thanks for the great article in the recent ICMJ [“Metallic Trash—Scourge of the Prospector,” July 2012]...
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