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Swiss Mining Company Demands Compensation From Bolivia
March 2007 by Associated Press
Glencore International AG demanded compensation from Bolivia’s government for nationalizing a tin smelter owned by the Swiss mining company.Great Basin Gold
The Great Basin, first named by Capt. John Fremont in 1843, consists of a vast region of internal drainage, occupying most of Nevada and western Utah, and parts of California, Oregon, and Idaho.
The Fire Assay of Fly Eyes
Colorado-Utah-Wyoming oil shale was first reliably discovered to contain gold and silver by the U.S. Bureau of Mines in the 1920s. Although most of this vast shale resource, up to 1,000 feet in thickness, contained nil or barely detectable values, many brown shale samples fire assayed here over the past thirty years have yielded up to 0.02 ounces per ton (opt) Au and 2.0 opt Ag.
Metal-Mineral Identification Utilizing a Detector
Seldom is a metal detector used for ore sampling today. Nevertheless, this procedure still works as all BFO and VLF detectors have a non-conductive mineral zone and a conductive metal zone with a neutral null zone between them.
The History of Tombstone
The Tombstone Mining District of Arizona was not a major producer of silver in comparison with some districts in other states, but it has had a long and colorful history.
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