Small Mining Operations
High Sulfidation Epithermal Deposits
November 2019 by Chris Ralph
They tend to be big, coming in large to extremely large sizes. They can also be amazingly rich and produce huge amounts of very high-grade ore.
Selecting A Low-Risk Region To Explore, Mine or Invest
“The evidence is clear—mineral deposits alone are not enough to attract precious commodity investment dollars...”
All About Hard Rock Drills
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.
Detector Brings New Life to An Old Lode Mine
…it was immediately evident the previous owner had not been using a detector. During just a few months of working the dumps part-time, he recovered gold in quartz specimens valued in excess of $40,000.
Shaker Tables for Processing Hard Rock Ores
Most placer equipment is really made with gold in the 30 and larger mesh sizes in mind, though if carefully used can often get reasonable recovery down to the 50 mesh size.
Selenium, Mercury and Suction Dredging—Studies Contradict CA State Water Resources Board
Federal and state regulatory agencies often cite mercury and methyl mercury in our waterways as a major factor for further restrictions on placer mining, and on suction gold dredge mining, in particular. However, these regulatory agencies are minimizing selenium and its neutralizing effects.
Small High-Grade Pocket Districts
…the excitement passed so quickly that little work was done, but they still have good potential, and I find they are not as well-known and not hit so hard by most prospectors.
The Bawl Mill • Ask The Experts - Seeking advice on setting up an operation and the agreement with the landowner • Montana Gold and Sapphires Revisited • A Third Generation Small-Scale Hardrock Revival • Gold Prospecting for Better or Worse: Respect the Angle of Repose • The Summer of ‘81 • The “Chuck It Out” Nugget • Gold and Silver Deposits of Bodie, California • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices
Legislative and Regulatory Update • Crumb Hunting With A VLF Detector • PLP Update