The Portable XRF Gun
November 2012 by Chris RalphWhile there is no metal detector that will see only gold, there is a device that can reliably distinguish gold from lead, copper, iron or other metals. It is an X-Ray fluorescence tester, sometimes called an XRF gun.
Q: Could you write more about the last two methods that you mentioned—the expanding chemical mixtures and the micro blasters, how and when to use them, and when not to use them?
Q: Can you suggest some family and dog friendly vacation spots in California where I can also do some sniping?
Q: How do metal detectors work around precious metal ore bodies?
Designing my own dredge...
The Bawl Mill • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • 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