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Ask The Experts—Precious metals in water?

How can I determine if there are precious metals in the groundwater?

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Ask The Experts - LR 2000, ArcGIS, and other mapping applications


Ask The Experts - Conflicting assays for platinum group elements


Ask The Experts—What happened to the BLM web site geocommunicator.gov?


Q: What happened to the BLM web site geocommunicator.gov? We cannot get mining claim info any more. Can you write about this? Or if you did what volume and number? Thanks for keeping the ICMJ alive and well.

Ask The Experts - Incorrect assays cause problems


Ask the Experts


Q: A few questions about diamonds...

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...

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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The Bawl Mill   • Our Readers Say   • The Basics of Crushing and Milling Operations   • Ask The Experts—What minerals are magnetic? Can rare earth magnets capture platinum?   • Ask The Experts—Jet nozzle or suction nozzle? Which is best for my highbanker?   • Rediscovering Placerville, California   • Eastern Arizona: Gold and Base Metal Deposits—Part I   • Over The Divide—Daryl J. Nelson   • Legislative and Regulatory Update   • Cyanide-Free Gold Separation   • Mining Stock Quotes & Mineral and Metal Prices   • Melman on Gold & Silver

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Mud Men: Pocket Miners of Southwest Oregon—Part I

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