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Small Mining Operations

Resurrecting an Old Hard Rock Mine—Setting Up the Millsite

One of the first things we did while looking at buying the equipment was figuring out how it would dovetail into the milling process we already had in mind.

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Using Structural Clues to Locate Buried Placer Channels


They must have assumed the paystreak was spotty and had been mined out, so they never mined as close to the side of the valley as they should have.

Ask the Experts


Centrifugal bowls versus jigs

Putting Together A Small Free Gold Mill—Part II


There are many smaller old hard rock mines out there—more than you might think. There are some small hard rock properties that are even open to be claimed if one does the right amount of research to find them.

Practical Advice for Milling Hard Rock Ores


The problem is that extracting gold from hard rock is often a lot more difficult than processing placer gravels. Still, there is some very high-grade ore out there in many old mining areas.

Mining Pegmatite Deposits


With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.

Hard Rock 101: Small-Scale Blasting


…the process remains much the same: Drill holes, load explosives, close up the holes, blast and muck out the resulting broken rock.

Small-Scale Hard Rock Production


So far this year we have recovered over three pounds of gold and the hard rock veins seem to go on forever. We now have three claims that can produce good enough gold to set up a productive operation.

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The Bawl Mill   • Our Readers Say Re: It's Time to Get the Heck Out of China   • Ask The Experts - What’s the status of suction gold dredge permitting in California?   • Ask The Experts - How do I properly and safely dispose of blasting caps?   • Ask The Experts - How much silver per ton does it take to make a mine profitable?   • Ask The Experts - How clean do my gold concentrates need to be to pour a gold button or bar?   • Ask The Experts - What is the name and model of the old jaw crusher pictured in last month’s issue?   • Dredging Tips and Tricks: T-80 Air Compressor Maintenance   • Hard Rock 101: Mechanical Techniques   • Clearing the Nugget Trap with a Detector   • Desert Prospecting Yields More Than Just Gold   • Memories of Shirttail Creek, Northern California   • Indictments Pile Up for Gold Traders   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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Seeking The Truth—A Letter From the Editor   • Legislative and Regulatory Update   • PLP Update: The Path for Legally Re-Starting Suction Gold Dredge Mining in 2021

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