Ask the Experts
November 2012 by Chris RalphQuestions regarding processing black sands
Q: Exactly how does amalgamation work? Does it “melt” the gold (or copper, or silver, etc.) and form an alloy? If one leaves a piece of gold in mercury, will the entire sample become an amalgam (combination) of gold and mercury? Or does it only affect the surface...
• Are these gold amounts large enough to interest a mining company?
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?
Geologic references for northern Nevada
• How do I get mining claims appraised?
Q: I have a question/request regarding some black sand left from my Dad’s prospecting days.
The Bawl Mill • Ask the Experts • Ask the Experts • Ask the Experts • The Portable XRF Gun • Gold Dredging on Oregon's South Umpqua • The Struggle to Reopen Alaska's Largest Gold Mine • Prospecting With a Detector: Lessons Learned • The Rush to Treasure Hill • Tips on Crevicing for Gold • Using Google Earth and Other Maps • Proper Assaying of Placer Samples • Mining, Health Care & Taxes • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices