Small Mining Operations
Conductive Minerals and Your Metal Detector
August 2014 by Chris Ralph

Digging It Dry

Critical Minerals Update
The critical metals are essential to the modern lives we lead. The prices of critical metals are moving up even faster than government published rates of inflation, with little sign of slowing down.
Dredging Do's and Don'ts
I’d start the day by crawling out of my dome tent, cooking up some Spam and eggs, and heating water for instant coffee on the Coleman stove.
Dredging Tips and Tricks: A Measure of Water Pump Efficiency
…as an academic argument, when mated to the appropriate engine, is the pump really moving water at the rate of 400 GPM?
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.
Ask the Experts
Ore testing and other advice for starting up a mining operation.
Gold in Guyana—Part II: Process Optimization at Sacre Coeur Minerals' Lower Puruni Alluvial Mining Project

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