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Ask The Experts: Sulfides and fluxes

The concentrate is just the heaviest of the heavy minerals but some sulfides are sneaking in there also with the gold...

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Ask The Experts - How much rock shall I crush to determine the value?


Ask the Experts: More suggestions for dealing with metallic trash....


Q: Thanks for the great article in the recent ICMJ [“Metallic Trash—Scourge of the Prospector,” July 2012]...

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• Sweep speed and sensitivity settings for a GPX-4500

The Portable XRF Gun


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.

Ask The Experts - Can gold be found with sugary, crystalline quartz?


Ask The Experts


What are the steps for filing a mining claim?

Ask The Experts - Were there insufficient values to continue mining at this site?


Were there insufficient values to continue mining at this site?

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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

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