Small Mine Selective Blasting
January 2000 by Dr. Ralph E. PrayDrill holes in a mineralized vein often penetrate hidden layers of poor ore which, after blasting, end up diluting the production quality. Disseminated gold ores carrying two ounces per ton may be identical in appearance to adjacent vein material...
The state of Washington is not especially known for placer gold, yet significant amounts have been recovered in a few districts. These deposits are usually downstream from lode mining areas, some of which are in British Columbia.
It’s a novel twist on the vending machine: in go the coins, out comes a nugget of gold.
Bottom line for you fellow miners: file your claims now in these areas or risk being forever locked out!
• Placer Dome
• Newmont Mining
• Homestake Mining Company
• Royal Gold Inc.
The nugget was cast aside with larger rocks during the screening process, but it was found later by an employee...
In 1977, I was a young, inexperienced geologist hired to evaluate Wyoming’s diamond resources in the Colorado-Wyoming State Line district, and investigate and map all other mineral commodities in the state with the exception of oil, gas...
• Stupid policies in action
• Does a Cipro prescription come with that house?
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