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Small Mining Operations

The Basics of Crushing and Milling Operations

In processing gold, silver and other valuable ores, the minerals containing the values, such as metallic gold, silver-bearing sulfides or other minerals, must be freed from the surrounding host rock before those valuable minerals can be captured

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Hard Work Pays Off On Hard Rock


They worked their plan, bit by bit, and sure enough, after the blast, gold was detected… Over two pounds of beautiful crystalline gold was recovered in that stretch!

Proper Spacing of Placer Sample Sites


The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.

Underground Blasting at a Gold Mine. '3...2...1...Fire in the Hole!'


Exploring Placers with Auger Drills


Augers can be used effectively for placer exploration with certain limitations.

Sampling for Success—Part II


The first and most important thing of the sampling process is to try to be as unbiased as possible. There is a natural tendency to select rock that looks the best—even unconsciously.

Pumping Water With Solar Power


Solar energy can be used for any size placer or hard rock mining operation. It is most practical for small and longer-term operations provided your mine is not located in a dense forest.

The Jenkins Mine Project, Conclusion—Recovery Operations & Summary


This project taught me that you don’t need to be Albert Einstein to apply a little science to your prospecting. I learned that most of the science related to suction dredging is actually common sense. All we need to do is take the time to apply it.

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The Bawl Mill   • Our Readers Say   • 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?   • Ask The Experts—Precious metals in water?   • 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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