Small Mining Operations
Cyanide-Free Gold Separation
February 2011 by Chris Ralph
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 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.
Sixteen to One Gold Mine: Unique Challenges and Potential Rewards - Pt I
Many of the Sixteen to One’s challenges arise from its unusual geology and the pocket characteristics of the ore deposits.
The Highs and Lows of Drywashing
We were met with a plethora of mechanical problems with the dry washer and even a few with the excavator that were at times frustrating, but we were in this for the long haul, so we needed to solve these problems and move forward.
Nome Offshore Dredging Creates Challenges
The Alaska state government has been trying to keep up with and maybe even stay on top of the situation by studying the problems associated with rapid growth and how to solve them.
Ask The Experts
Options for affordable crushers for small mining operations
Dredging Backwards?
Before I tell you what dredging backwards is, I’ll tell you why my team and I decided to give this very unconventional dredging method a try.
Uphill Battle Continues for California Dredgers
There are currently three controlling agencies or entities over suction dredging in California—and you can make that four if the state legislature decides to further muddy the waters with additional legislation to block suction gold dredging in the state.
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The Bawl Mill
• Our Readers Say
• The Basics of Crushing and Milling Operations
• Ask The Experts—What minerals are magnetic? Can rare earth magnets capture platinum?
• Ask The Experts—Jet nozzle or suction nozzle? Which is best for my highbanker?
• Ask The Experts—Precious metals in water?
• Rediscovering Placerville, California
• Eastern Arizona: Gold and Base Metal Deposits—Part I
• Over The Divide—Daryl J. Nelson
• Legislative and Regulatory Update
• Mining Stock Quotes & Mineral and Metal Prices
• Melman on Gold & Silver
