Ask The Experts: Sulfides and fluxes
July 2017 by Chris Ralph
The concentrate is just the heaviest of the heavy minerals but some sulfides are sneaking in there also with the gold...
Q: Thanks for the great article in the recent ICMJ [“Metallic Trash—Scourge of the Prospector,” July 2012]...
• Sweep speed and sensitivity settings for a GPX-4500
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.
What are the steps for filing a mining claim?
Were there insufficient values to continue mining at this site?
The Bawl Mill • Ask The Experts: What is a Spanish needle? • 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