All Articles
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...
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Our Readers Say
June 2008
• Table of Weights and Measures on ICMJ website
• More on presidential candidate Ron Paul
• Table of Weights and Measures on ICMJ website
• More on presidential candidate Ron Paul
The Bawl Mill
October 1999
• Some of us probably recall the saying "the fly in the ointment."...
• "You must be morons to send me this letter!"
• Worried about Y2K?—Trust in God and the FDIC...
• Some of us probably recall the saying "the fly in the ointment."...
• "You must be morons to send me this letter!"
• Worried about Y2K?—Trust in God and the FDIC...
Diamond Search Underway in Alaska and Minnesota
May 2005
Two Canadian companies are financing a $1 million drilling operation in the Susitna Valley after a Palmer miner discovered purple and orange garnets in gravel he dredged near Shulin Lake.
Two Canadian companies are financing a $1 million drilling operation in the Susitna Valley after a Palmer miner discovered purple and orange garnets in gravel he dredged near Shulin Lake.
Cal-Gold Closes Shop After 30 Years
September 2007
“It is with great sadness that after more than 30 years in business in Pasedena, Cal-Gold will close its doors,”
“It is with great sadness that after more than 30 years in business in Pasedena, Cal-Gold will close its doors,”
First Load of Concentrate Leaves Reopened Ruth Mine
November 2004
Five years after depressed copper prices forced the Robinson mine to shut down, the first truckload of concentrate pulled out in what its new owner sees as a renewal of the facility and Ely-area residents hope is a rebirth of the region.
Five years after depressed copper prices forced the Robinson mine to shut down, the first truckload of concentrate pulled out in what its new owner sees as a renewal of the facility and Ely-area residents hope is a rebirth of the region.
PGMs in California
September 2002
The occurrence of platinum-group metals (PGMs) is rather widespread in California in placer deposits, but they are not of commercial interest as things now stand.
The occurrence of platinum-group metals (PGMs) is rather widespread in California in placer deposits, but they are not of commercial interest as things now stand.
Precious Metals in the Patagonia Mountains
August 2003
The Patagonia Mountains are a small but rugged mountain range that adjoins the Mexican border some 9 to 16 miles east of the border town of Nogales. The range trends northerly for 14 miles and is about 10 miles wide, reaching an elevation...
The Patagonia Mountains are a small but rugged mountain range that adjoins the Mexican border some 9 to 16 miles east of the border town of Nogales. The range trends northerly for 14 miles and is about 10 miles wide, reaching an elevation...
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