All Articles
Greenstone
August 2004 by Edgar B. Heylmun, PhD
Greenstone 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...Additional articles that might interest you...
The American Hill Mine
September 2007
In the high country of the Tahoe National Forest is 160 acres of a patented mining claim dating back to its origin around 1853. This is well above the historic mining town of Michigan Bluff and past Deadwood—an old mining town...
In the high country of the Tahoe National Forest is 160 acres of a patented mining claim dating back to its origin around 1853. This is well above the historic mining town of Michigan Bluff and past Deadwood—an old mining town...
Legislative and Regulatory Update
February 2017
• Obama’s parting shots
• California suction dredging
• Oregon follows California’s lead
• Lawsuit coming; bill introduced to stop mining in Washington State
• President Trump halts new federal regulations
• Obama’s parting shots
• California suction dredging
• Oregon follows California’s lead
• Lawsuit coming; bill introduced to stop mining in Washington State
• President Trump halts new federal regulations
Millie's Tailings
January 2000
"Gold does strange things to people."
"Gold does strange things to people."
Our Readers Say
September 2011
Gold and Silver Deposit May Be World's Largest
June 1999
A crater in an undersea volcano off Japan may contain the world's largest gold nugget ever found...
A crater in an undersea volcano off Japan may contain the world's largest gold nugget ever found...
The Bawl Mill
December 2006
• Caught on camera...
• Taxpayers can’t go “cold turkey”
• Hurricane FEMA wipes out 1,800 homes
• Caught on camera...
• Taxpayers can’t go “cold turkey”
• Hurricane FEMA wipes out 1,800 homes
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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
