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Gold in clastic black shale

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Exploration Rush at Tonopah, Nevada


A few months later, a young, greenhorn lawyer agreed to pay to have it assayed, and the quartz turned out to be rich in both gold and silver.

The Seven Troughs Mining District


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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.

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