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Using A Trommel For Placer Processing

The behavior of a trommel is dependent on how it is designed and set up. Important design characteristics include feed rates, screen perforation sizes, cylinder size, rotation speed and incline.

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Michigan Approves Nickel, Copper Mine


Regulators gave final approval to a nickel and copper mine for the Upper Peninsula.

Mining Stock Quotes and Mineral & Metal Prices


Humble Beginnings


Right away I got a target, and it ended up being gold from a nice little bench. With only an hour left of daylight, I continued heading upstream and found five more tiny pieces of gold with my VLF…

Melman on Gold & Silver


If there is one word which seems to describe the past month on so many fronts, it is the word "dysfunctional." The tone was set when "American Beauty" won the Academy Award for "Best Movie."

Gold in Quartz


Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.

Gem Discoveries Sought in North Carolina Field


The gem miner who uncovered North America’s largest emerald thinks he’s found a mother-lode of emerald-rich rock in Alexander County.

Guanajuato Silver, Mexico


For 250 years, the Guanajuato Mining District of Mexico produced 20% of the world's silver. The old colonial city of Guanajuato (pop.100,000) is wedged in a narrow canyon in the Sierra de Guanajuato, at an average elevation of 6,750 feet.

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