Ask the Experts
November 2013 by Chris RalphTreating ore with a plasma torch or shock waves?
Q: Can a voltmeter be used to determine the type of metal/mineral present in soil?
• Sweep speed and sensitivity settings for a GPX-4500
Gold and silver in Pennsylvania
Q: A few questions about claim markers, gold hunter test kits, and videos....
• Determining the amount of gold in a specimen
The Bawl Mill • One Potato, Two Potato... • Proper Placer Sample Processing • Strategic Metals—Part I • Dry Washing to Capture Fine Gold • Are There Any Good Prospects Left? • Ophir—Possibly the Best Kept Secret in Alaska! • Southern Oregon's Illinois River—A Lesson in Sharing • Using Sucker Guns to Find Gold • Making Adjustments to Catch Fine Gold • The Subsurface Suction Dredge • A Few Thoughts About Successful Nugget Hunting • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices