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Hard Rock University: Expensive Hobby or Real Business?

Improper sampling techniques lead to more avoidable heartache than almost anything else in micro mining.

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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...

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.

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.

Proper Spacing of Placer Sample Sites


The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.

Resurrecting An Old Hard Rock Mine--The Saga Continues


Another little gem of equipment he built was a nifty sample splitter. In order to get accurate assays, you need to have really good, representative samples for the assayer to process.

Recovering Fine Gold with Oleophilic Adhesion


Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.

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