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Small Mining Operations

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.

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Spanish Gold Ledge Still Producing Gold


The Gold Eye placer claims, located in the La Cholla district of Arizona, are still producing some beautiful gold. From the days of the Spanish explorers and Mexican miners, men have tunneled into the earth in search of gold in this area.

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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.

Mining for Gold and Sapphires in Montana


Fascinated by the sapphires—and the gold that occured with them—he was soon buying parcels of property and setting up his own commercial-scale gravel processing plants.

Cyanide-Free Gold Separation


Some ores—mostly those with a high free gold content—are very amenable to gravity concentration. Well oxidized ores containing coarse gold are usually best for non-cyanide processes. Ores with significant sulfide content may require the...

The Challenge of Winter Dredging


Dredges actually do pretty well in freezing conditions. There are a few tips you should know, however.

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The Bawl Mill   • Ask The Experts - Where can I obtain chemicals for flotation?   • Ask The Experts - Can I get an update on your efforts in DC?   • Ask The Experts - What equipment do I need to enter an old lode mine?   • Hard Work Pays Off On Hard Rock   • The Mysterious Telluride Minerals   • Detecting: Getting Away From The Heat And Into The Gold   • The Coolgardie Gold Mining Camp of Southern California   • Gold Prospecting for Better or Worse: How Curiosity Burst My Platinum Bubble   • Prospecting for Copper—What to Look for on the Outcrop   • Dredging Tips and Tricks: A Measure of Water Pump Efficiency   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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