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Small Mining Operations

A New Method for Handling Stubborn Gravity Middlings

The solution focused on the relative difference in malleability between gold and waste, rather than the difference in density exploited by gravity circuits.

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Comments on Gold Rush and Bering Sea Gold Series


The 316 Mining Company has not been all that successful, but does not ever seem to learn from their past mistakes.

Sampling for Success—Part II


The first and most important thing of the sampling process is to try to be as unbiased as possible. There is a natural tendency to select rock that looks the best—even unconsciously.

Lessons Learned From Geologists


Not long after this, I was camped out with the geologist beside the Similkameen River where he showed me the evidence that an ancient channel existed on our claim.

Modern Mining Reclamation


A study showed that between 1930 and 1980, only a quarter of one percent of the land in the United States was used in all mining applications combined, including surface mining, tailings disposal, underground mines, and all mineral processing facilities.

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.

Hidden Value in Old Tailings


The 15 rare earth elements were discovered long after the gold rush began to wane, but demand for them only took off over the past 10 years...

Principles of Designing Your Mill Production System, Part I: Starting Up


One of the issues that prospectors run into when working to upscale from micro-scale hard rock testing to a greater production output, is that they often confuse individual devices or machines with systems.

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