Pocket Gold in Gneiss
March 2004 by Edgar B. Heylmun, PhDMetamorphic rocks such as gneiss and schist are known for their pocket gold deposits. Such pockets may not be large enough for major mining operations, but may be very rewarding for individuals or small companies. Gold-bearing quartz veins may cut gneiss or schist, but often the veins parallel the bedding, or foliation. The origin of mineralized veins, which parallel the foliation, has been kicked around for years.
Like almost 200 other Silver Valley miners, Butch Dempsey used to work at the Sunshine Mine in Kellogg. But, along with dozens of the others, he now works for the Columbus, Montana-based Stillwater Mining Co., about 400 miles to the east...
Selected excerpt from USDA Forest Service Technical Report:
Anatomy of a Mine from Prospect to Production
The Idaho Supreme Court agreed on November 30 to reconsider its controversial split decision to award the federal government the rights to all unappropriated Salmon River water flowing through three central Idaho wilderness areas.
In 1983, some of the ore yielded more than 2,500 ounces of gold within 30 feet of the surface. The shoot pinched to a narrow vein.
One of the reasons I am bringing this article forward to readers now is that the mine personnel are celebrating the production of 150 million ounces of silver since 1986.
Clarence King was born in Rhode Island in 1842, the son of a businessman. His father died when he was 6, so he was raised by his mother. She wanted to have Clarence attend the very best schools, and even moved in order to have him in the best district. She gave him a magnifying glass on his 7th birthday, and this led to his discovery of fossil ferns in neighborhood rocks.
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