Small Mining Operations
Setting Up A Placer Operation
January 2022 by Don Robinson
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.
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.
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.
Hard Rock 101: Blasting With Kinepak Explosives
Fortunately, there are products on the market that can address these problems and make a small-scale mining operation feasible.
Montana Gold and Sapphires Revisited
I had a chance to visit the operation in person and talk with Neal. I was very impressed and I think our readers could learn a lot about building up a commercial placer operation from scratch…
Lode or Placer: What Difference Does It Make?
This explains the large difference in particle sizes between placers and hydrothermal lode deposits, but also means that while the mining may be similar in some cases, the sampling and recovery techniques are usually quite different.
Ask The Experts
Any good books on mineralized faults and contacts?
Addressing EPA Overreach: What Dredgers Need to Know
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