August 2004 by Edgar B. Heylmun, PhDGreenstone is a hard, tough, altered igneous rock, usually dark green in color. The term “greenstone” has been loosely applied to all greenish rock, including peridotite, dunite, jade, serpentine, and even hydro thermally altered rocks in mining districts. True greenstone is...
• Reopening closed areas
Yukon-Nevada received permission last month from the Nevada Division of Environmental Protection to restart the mill, after the agency determined the company met environmental standards.
• Comments needed from small-scale miners in Oregon
• News from the House and Senate
• Governor shows support for mining
The state of Alaska is huge, over twice the size of Texas, with most of the population in just a few towns. The northern third of the state is north of the Arctic Circle, and vast regions are only sparsely populated.
Can a metal detector be used to find limonitic gossan material?
We have concessions high in the Occidental mountains to the west, while down near our pueblo we have begun construction of a mill to process the ore we will soon be mining. As I look around, our new shop with its adjoining wings...
Despite lower prices, Nevada gold production increased slightly last year and the state continues to produce about three-fourths of the nation’s gold.
The Bawl Mill • Lawsuit to Challenge New Forest Service Regulations • Gold in Utah Laccoliths • Where Do I Begin? • Looking Back • Mine President Seeks Opinions From Peers • Over The Divide • Picks & Pans: Miner Finds Heart of Gold • Company Notes • Canadian Arrow Tries Different Approach • Experts Forecast Rising Prices for Gold, Silver • A Few Reminders About Fraud • Mining: Doing it Right the First Time • Prospectors & Treasure Hunters Find Gems • The Golden Highway—El Dorado County • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices