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The Oretron

Most ore bodies generate a voltage, giving the prospector another valuable method of tracing and locating these hidden minerals. With the Oretron, one can sense and measure these voltages along the ground surface...

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Our Readers Say


• "A better working relationship needs to be established..."

Our Readers Say


This is in response to Norbert Beckstrom’s letter in the November issue of the ICMJ. He wrote in reference to a letter by Jerry Hobbs in the October issue. If anyone opened up a can of worms, it is Mr. Beckstrom.

Customizing Your Dredge


I am going to suggest dozens of ways you can increase suction power, dredge to greater depths, and improve recovery methods in your sluice box.

Calcite and Limestone


The other distinguishing feature of calcite has to do with its chemistry. Geologists sometimes take a small bottle of dilute hydrochloric acid out into the field with them because calcite reacts with acids to make a bubbly foam.

Two Nevada Mines Look to Supply Own Power


Newmont and Barrick are taking matters into their own hands when it comes to high electricity prices.

Picks & Pans: In Search of a Vein: Looking for Hardrock in the Talkeetna Mountains


Down, down, down I plummeted into the narrow granite chute. In a matter of a few seconds, I envisioned myself lying crumpled in a field of mammoth, sharp, jagged granite rocks. In those few seconds, my thoughts also imagined my life ebbing...

Critical Minerals: Tungsten


Because tungsten minerals are heavy, exploration can be done using stream sediment samples. Prospectors looking for gold have found scheelite or wolframite in their placer concentrates, and in some cases this has led them to make important tungsten finds.

Subscription Required:
The Bawl Mill   • Our Readers Say   • Enrichment of Gold Veins   • The Assay of High Iron Gold Ores   • The Patch   • History of Mining—Bradshaw Mountains, AZ (Part I)   • Picks & Pans—The Green Rock, Rattlesnakes, Good Gold and Ruth's Mine   • Silver Hill, North Carolina   • Residual, Lateritic and Gossan "Soils" as Potential Nuggetshooting Sites   • Hardrock in Downieville   • Looking Back   • Company Notes   • Gold in Northern Baja California   • California State Gold Panning Championship Results   • Melman on Gold & Silver   • V.P. Contender Addresses Mining Show

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