Ask The Experts
Ask The Experts: What is a Spanish needle?
July 2017 by Chris Ralph
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?
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Marketing other minerals recovered while gold mining
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Q: Will my detector react to fine gold?
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• What to prospect with on the Klamath River
Ask the Experts: More suggestions for dealing with metallic trash....
Q: Thanks for the great article in the recent ICMJ [“Metallic Trash—Scourge of the Prospector,” July 2012]...
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Q: How do metal detectors work around precious metal ore bodies?
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Q: Would a mining company be interested in this area for just the magnetite?
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