How To
What To Do When Gold Recovery and Assay Values Differ
May 2018 by Don Robinson
Before going into an analysis of the ore composition, two other major factors will affect the result. These are the accuracy of the assay and the effectiveness of the mill for the gold recovery.
New Research Tool for Miners in Wyoming
The Wyoming Geological Survey released an online interactive map...
Prospecting for Diamonds
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
Extracting & Smelting Your Gold
Unfortunately, not all the gold that we prospectors find is pretty, or appealing to the eyes. They are not all nice, bright, shiny nuggets with lots of character that carry high collector value.
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...
Ask the Experts
Ore testing and other advice for starting up a mining operation.
The Fire Assay of Carbon
Carbon, activated charcoal, or “char,” as some old timers refer to it, can be an assayer’s nightmare.
How to Evaluate Mineral Claims—What to Know Before You Buy
Even though they have put down thousands of dollars, the buyers often stop paying on their claims part way through the process after they realize they’ve been duped, but the company just sells it again to another buyer.
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• Our Readers Say
• Putting Together A Small Free Gold Mill
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