The Basics of Small-Scale Heap Leaching with Cyanide Part I—History, Suitablility and Permitting
July 2007 by Chris RalphHardrock mining is usually done on a large scale, and although a few small-scale hardrock operations still exist, it’s not an easy operation to start up and run profitably.
Panama is a long, narrow isthmus, 30,200 square miles in area, that separates Costa Rica from Colombia. It is best noted for the Panama Canal, which is now under the control of the Panamanian government, aided by the United States. The canal bisects the country and is an engineering marvel that was opened in 1914.
The solo prospector in his canvas field clothes and skin-thick skiff is still king of the rain forest in southeastern Alaska. Even with all the highly trained field people and their helicopters, it is he who ventures forth across ocean water and in the bush to search for new wealth hidden beneath the green carpet of the vast Tongass Forest.
The company acquired the Guanajuato Mine Complex in 2005, and since that time they have carried out extensive drilling programs, both from surface and underground, with particular emphasis being placed on the Cata Clavo Zone.
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At the peak of construction later this year, the mine will generate more than 6,000 direct and indirect jobs across the state with annual wages totaling more than $200 million...
I opened the front door of my house at 5:00 AM to find it raining hard and water standing in puddles all over the driveway. Just great! It hadn’t rained for 3 weeks, and on the morning we were leaving for a weekend dredging trip, the weather decided to change.
One of the first minerals most prospectors learn to recognize is quartz, because, in the right circumstances, it can be an excellent indicator mineral for prospectors. Quartz is common, easy to identify, and is often associated with gold and other valuable metal deposits.
The Bawl Mill • Ask the Experts • More Tips for Evaluating Ores • The Mountain Gate Mine • Oregon Suction Dredge Permit Update • In Pursuit of Gold and Silver in the Sierra Madres—Buying the Pilot Mill • Life in the Alaska Gold Rush • More Small-Scale Miners Attracted by Gold Prices • Gold in New Zealand • Ready “Ore” Not, Uranium Boom is On Again • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Looking Back