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Prospecting & Detecting

Determining The Optimal Crushing Size for Gravity Recovery

It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.

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Study Confirms Mercury Levels Safe in California's Gold Country


While the Water Board documented the selenium levels in fish and noted they exceed the levels of mercury, they have yet to acknowledge the numerous scientific studies that show selenium effectively neutralizes the effects of mercury.

Determining the Amount of Gold in Rich Ores


This is just the type of specimen that could have been easily ignored by the old-time miners. It felt a little heavier in my hand than a chunk of quartz of that size ought to have been.

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How Should I Work This Prospect?


How big is the deposit? Are there boulders you will need to move? Do you just want to recover the nuggets or do you think there is good fine gold that you will also want to capture?

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