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Small Mining Operations

Setting Up A Placer Operation

Trommels come in two basic sections. The first section is called the scrubber unit. The second is the punch plate, where the gravels and ore of a specified size drop out into a variety of sluice box recovery units.

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Resurrecting An Old Hard Rock Mine--The Saga Continues


Another little gem of equipment he built was a nifty sample splitter. In order to get accurate assays, you need to have really good, representative samples for the assayer to process.

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There are three basic power sources for rock drills—electricity, gasoline and compressed air. Before we go into big pneumatic drills, we’ll start with a quick rundown of each.

Early Summer Mining in Wyoming


Old tailing piles extend for miles. There was still plenty of water flowing here, so WPA members set up highbankers at several settling ponds.

The Subsurface Suction Dredge


The problems of the submersible dredge tube are addressed by the subsurface dredge, where the enclosed sluice recovery tube is suspended from a flotation assembly...

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Centrifugal bowls versus jigs

Northwestern Alaska Mineral Resources


Gold and jade are actually only minor mineral resources for the Northwestern Alaska region as a whole. Modern prospecting has focused more on base metal than precious metal resources.

Underground Mining: Getting the Ore Out


Choosing the right method to move your ore and waste is all about making the right choices. Sometimes more than one method may be used during the life of a mine as an operation expands and grows.

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The Bawl Mill   • Ask The Experts - Geophysics or drilling? Which is best for this project?   • Ask The Experts - How closely are black sand and gold related?   • Why Is The Gold On Bedrock—Or Why Is It Not?   • Breaking Boulders With Explosives   • Colorado to California for Gold   • Historic Dredge Uncovered in North Carolina   • Grizzly Flats, California—Another Mother Lode Gold Rush Town   • Drywashing Without A Drywasher   • Late Fall Drywashing   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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