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?
Ask The Experts: Equipment to break up heavy clay
Q: I am looking for a “trommel machine” that doesn’t separate anything but clay slurry from rock hard clay.
Ask the Experts
Q: Can a voltmeter be used to determine the type of metal/mineral present in soil?
Ask The Experts—Jet nozzle or suction nozzle? Which is best for my highbanker?
I have a highbanker, and I am considering adding a suction piece to make it a combo.
Ask The Experts: Can you review the differences in dry washers?
Q: What are the advantages or disadvantages of hand crank vs. battery power vs. blower? And your preference?
Ask the Experts
Q: How do I get gold out of a saturated solution of salt with nitric acid?
Ask the Experts: Who manufactures the diagonal vibrating table?
Q: Who manufactures the diagonal vibrating table?
Ask The Experts: Is an XRF gun useful for prospecting and mineral identification?
Q: I’ve thought about renting an XRF gun with gold specific software to use for exploration this spring.
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• Legislative and Regulatory Update
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• The "Madonna Nugget"—A Weekend Hunt to Remember
• The Goldfield Mining District, Nevada—Part II
• Sunset Sunbaker
• A Prospecting Adventure in Mexico
• Critical Minerals: Tungsten
• Police Urge Author to End Treasure Hunt
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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