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Picks & Pans: Mining Tungsten Ore—A Case History
May 2002 by Dr. Ralph E. Pray
In 1977, when the price of tungsten hit one of its highs, three of us formed U.S. Western Mines to look for scheelite, the mineral ore of tungsten. Union Carbide Corporation was purchasing raw tungsten ore at...
More on Meteorites
...how many of us have knowingly found or bought a meteorite—a small to large mass of stone or metal; a meteor that has survived not only a space voyage of millions of years, but also the impact of striking the earth?
In Pursuit of Gold & Silver in the Sierra Madres—The Plan
In my travels, and my experience with gravity tables, one thing has implanted itself in my mind. What about the tails?
Company Notes
• Homestake Mining Company
• Cominco American Inc.
• Agnico-Eagle Mines Ltd.
Ask The Experts - Claim staking as a job?
Mom Finds 3.72-Carat Yellow Diamond
“Much of the ground where Ms. Hollingshead found her diamond is made of unweathered volcanic rock. When it rains, flowing runoff often leaves loose gravel, and sometimes diamonds, on the surface in these areas.”
Metal Detector Testing Methods
It will not be any easier than on your table at home, and so testing a very small test target like the ballpoint pen can tell you immediately if a detector is suitable for looking for tiny gold nuggets.Pot Hole Gold
It was early in the 2008 season on the Mokelumne River near Pine Grove, California. Considering the potential for high water through the month of June, my wife Fran and I set our sights on investigating some of the pot holes in...
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The Bawl Mill
• Our Readers Say
• California Wilderness Coalition and The Nature Conservancy Recruit Government Employees to Carry Out Huge Land Grab
• Drywashing Rules Clarified
• Mineralized Calderas in Colorado
• The Keystone Gold-Copper District, Medicine Bow Mountains, Southeastern Wyoming
• Gold in Oregon
• Aussie Gold—A Look at the Northern Territory
• The Phoenix Gold Mine: A Brief History
• Calico Mine
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
• Melman on Gold & Silver
