Ask The Experts
The Portable XRF Gun
November 2012 by Chris Ralph
While 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.
Additional articles that might interest you...
Ask The Experts - Help with an assay report
February 2018
Ask The Experts—Precious metals in water?
February 2011
How can I determine if there are precious metals in the groundwater?
How can I determine if there are precious metals in the groundwater?
Ask The Experts: How many claims can I file in Arizona?
May 2017
Q: I plan to be filing as the sole owner of the claim. How many claims can I file for and what would be the size of claim(s)?
Ask The Experts - Who owns this historic mill and how do I handle possible mercury contamination?
May 2019
Ask The Experts
March 2016
Options for affordable crushers for small mining operations
Options for affordable crushers for small mining operations
Subscription Required:
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
