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History & Geology

Weathering, Erosion and Placers

The big interest to prospectors thinking about the effect of erosion is not what might happen long into the future, but what they might find in the rivers later this summer when the water levels go down.

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Round Mountain, Nevada


There are a number of veins in the disseminated mineralization, but the principle ones on Round Mountain are known as the Los Gazabo and the Keane.

Montana’s Rosetta Stone: Discovering Mines In The Treasure State


This is the intelligent way to start modern prospecting. The value of literary research yields challenging outings, specimens, history and geologic research.

Bedrock Gold: When It’s There and When It Isn’t


Has your experience ever led you to wonder why some gold is deposited on bedrock and in crevices, while other gold is not? We’re going take a deeper look at this and see what we can figure it out.

Prospecting for Diamonds


Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.

Mineralized Faults and Contacts in the Search for Gold


Fault zones and rock contacts are important because the vast majority of gold and silver deposits, as well as those of many other metals, are formed by hot, mineralized water solutions.

Eastern Arizona: Gold and Base Metal Deposits Part II


In this review of precious and base metal deposits in Arizona, it is apparent that several significant mines and mineral deposits occur in eastern Arizona, and there is considerable potential for new discoveries.

The Wild Rush To Find More Cobalt—Part II


In this second part on cobalt, I will take a look at the various types of cobalt deposits and how you can prospect for them. Who knows—perhaps the next big cobalt strike will be yours.

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