Small Mining Operations
All About Hard Rock Drills
July 2021 by John Norman
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.
Proper Assaying of Placer Samples
The whole purpose of sampling mineralized ground is to measure the values in a small volume of material that would be representative of a much larger volume of similar material. The key word is representative. Chemical and fire assaying will not accurately represent placer deposits by themselves.
Using A Blasting Machine in Rock Breaking
Whatever system you plan to use will require a way to safely initiate the explosives from a distance. In this article, we’re going to learn the basics of electric blasting and get a hands-on example…
Surviving the Unexpected
In this article, we will talk about how emergency response works in back country areas and go over some different ways to improve your chances of obtaining a good outcome should you get into trouble.
Good Assays and Bad
The high prices for gold and silver are exciting and certainly have revolutionized the prospecting and mining scene. New interest in gold and silver mining is springing up from every corner, from individual prospectors armed with gold pans to exploration and mining companies working to set up multimillion dollar commercial operations producing hundreds of thousands of ounces per year. The idea of getting riches from rocks is one that motivates a lot of folks all over the globe. It’s an exciting time, but this excitement brings out another side...
Crushing Quartz in Calaveras County: A Placer Miner Learns New Tricks
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
All About Trommels and Screens for Placer Gold Recovery
The right speed accumulates only the heavy materials and allows all of the lighter stuff to flow through. This optimum speed is dependent on the size of the gravel you need to move through the system.
Advancements in Non-Toxic Gold and Silver Leaching
The non-toxic thiosulfate is actually the medical antidote given to people for cyanide poisoning. By accomplishing both neutralization and metals recovery, this process creates an economic and environmentally attractive process.
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The Bawl Mill
• Legislative and Regulatory Update
• Ask The Experts - What percentage of the gold price can I get from a buyer?
• Ask The Experts - Is a hookah battery setup legal in California?
• Ask The Experts - Are friends and relatives regulated like employees?
• Ask The Experts - What do you use for flux for melting gold?
• Ask The Experts - Why Isn't There A Dual Coil Detector?
• Ask The Experts - Who has the rights to a vein that goes under a neighboring claim?
• Ask The Experts - Is platinum usually magnetic?
• Ten Detecting Tips for the Savvy Desert Prospector
• Gold Prospecting for Better or Worse: When a Gold Prospector Goes to a Diamond Mine
• Why So Much Gold in Nevada?
• A Golden Past
• Fire Assay Finish by Silver Nitrate Fusion for PGMs
• Do Gold Nuggets Come Out At Night?
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
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Judge Rules Against Dredger in Idaho Civil Case
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