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Ask The Experts - This low-grade ore is not worth processing

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Ask the Experts—How do you determine how far a piece of gold has traveled in a stream?


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Q: Conflicting advice on motorized small-scale mining equipment

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.

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Ask The Experts - Where did this kimberlite come from?


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The Bawl Mill   • Ask The Experts - Do I need something other than a fire assay for PGMs?   • Placer Gold Deposits of New Mexico   • The Hunch   • Resurrecting An Old Hard Rock Mine—A Series of Small Victories   • The Basics of Exploration Leases and Contracts—Part I   • Gold Prospecting for Better or Worse: A Long Hike   • Mutiny on The Mason   • Who Jumped Whose Claim First?   • The Value of Evidence   • Over The Divide: Charles "Chuck" Cushman   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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