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: Assay problem or recovery problem?
Q: I have tried various leaching techniques from which I cannot get a precipitate.
Ask The Experts
• When geologists and old-timers have conflicting views.
Ask The Experts
Replacing cloth on a drywasher
Ask The Experts
• Are these gold amounts large enough to interest a mining company?
Ask The Experts - How do I best recover gold in pyrite?
Ask the Experts
Buying a turquoise claim
Subscription Required:
The Bawl Mill
• Ask The Experts: Sulfides and fluxes
• Legislative and Regulatory Update
• Simple Rules of Gold Geology: Comparing Epithermal and Mesothermal Deposits
• 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
Free:
MMAC Update
