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Gold in clastic black shale

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Ask The Experts


Q: Is this gold or some other metal?

Picks & Pans: Gold Recovery in Placer Mining Operations


Two of the major factors affecting the profitability of a placer mining enterprise are the relative efficiency of the mining equipment, and the rate and percentage of recovery obtained while conducting mining operations.

The Tombstone Silver-Lead District, Arizona


In 1877, a prospector named Ed Schieffelin discovered silver in “the middle of nowhere” and staked two claims: “Tumbstone” and “Graveyard.” Soon a town and mining district were organized and acquired the name “Tombstone” after making a spelling correction.

Conrey Dredge No. 4—Part II


These were the men who periodically picked up the gold amalgam from the tables and sluices in the dredge, processed it, and transported the gold ingots to the railroad express office in Alder. Their trustworthiness must have commanded a prominent wage.

Gold in Tertiary Gravels


In some places, semi-continuous sections of riverbed can easily be linked in many places to identify the path of the ancient rivers.

Gold in Beatty, Nevada


In this case, signs of gold were found at the bottom of the alluvial and then traced in a triangle up the face of the mountain until they stopped—that is where the digging began.

Prospecting for Surface Flood Gold Placers on Low and Intermediate Gradient Streams


Sample panning is a very important method used to find the richest parts of a flood gold deposit before setting up equipment and running material.

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