Picks & Pans: Mining Tungsten Ore—A Case History
May 2002 by Dr. Ralph E. PrayIn 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...
For approximately 30 years, the mines produced good ore, some so rich it was simply sent straight to bagging, bypassing milling and loaded directly on the rail cars.
Bribery allegations against four Rio Tinto employees detained in China are “wholly without foundation,” the mining company said, as Australia continued to press Beijing for details of a case that is straining ties between the two nations.
We started planning for this trip last year, after we left Ganes Creek, Alaska, and headed back to civilization. I found 4.75 ounces of very nice nuggets and the group had a total of 47.47 ounces for the week.
If you’re going to successfully detect nuggets you must not only know a little about finding gold and detecting, but you also need to know your own limits, have a dash of luck and a lot of persistence.
One of the best-known placer gold localities in southern Arizona is at Greaterville, 45 miles, by road, southeast of downtown Tucson. The site of mile-high Greaterville is in grasslands and oak woodlands, on the east flank of the Santa Rita Mountains.
• Red tape at its finest...
• With the stroke of a pen
I didn’t think too much of our dredge hole and we were both considering a move when we hit bedrock. There was a good quantity of flakes and fines, but no nuggets.
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