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How to Interpret Assay Values

This assay system of ounces per ton sounds simple enough, but the use of the metric system and the additional measuring terms of “grams per ton” and “parts per million” (ppm) has created some misunderstanding of ore value.

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Ditches almost always started in the high country and contoured the mountainsides, making a long drop, usually many miles away, to the goldfields. There are ditches in Trinity County that originate at seven and eight thousand feet in the Trinity Alps that carried water almost thirty miles.

Dry Washer, Wet System or Metal Detector?


I love to dry wash old nugget patches found by detector operators, and I have found my fair share of gold dry washing those areas. I have also found a few nuggets using a detector on the bedrock exposed by dry washing the patches.

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What are the tell signs of garnet deposits?

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

Exploring Placers with Auger Drills


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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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The Bawl Mill   • Legislative and Regulatory Update   • California: The Land of Big Nuggets—Part II   • Bedrock Nugget Hunting: Tools of the Trade   • A Primer on Bitcoin and Other Cryptocurrencies   • Gold Hunting on Libby Creek   • PLP and MMAC Update   • Man's Best Friend   • An Interview with Minelab Engineer Mark Lawrie   • Third Largest Nugget in Existence Returns to Dallas   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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