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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...
Niobium and Tantalum
January 2005
Niobium (columbium) and tantalum are related metals that usually occur together and are associated with vanadium on the periodic chart of the elements. Both metals have seen increased usage in high-tech applications in recent years because of increased availability.
Niobium (columbium) and tantalum are related metals that usually occur together and are associated with vanadium on the periodic chart of the elements. Both metals have seen increased usage in high-tech applications in recent years because of increased availability.
Basic Geology for the Independent Miner—Part V Geology of Hardrock Gold Deposits
May 2006
In this installment we will finish up our discussion of how primary hardrock gold deposits form. Understanding how rock alteration works can lead to some good ideas for exploring around old mining districts.
In this installment we will finish up our discussion of how primary hardrock gold deposits form. Understanding how rock alteration works can lead to some good ideas for exploring around old mining districts.
Melman on Gold & Silver
December 2000
October lived up to its reputation as a most unfriendly month for the stock market as hi-tech stocks took a huge battering, the NASDAQ and the Dow were hit by heavy selling and consumer confidence figures plunged.
October lived up to its reputation as a most unfriendly month for the stock market as hi-tech stocks took a huge battering, the NASDAQ and the Dow were hit by heavy selling and consumer confidence figures plunged.
The Bawl Mill
April 2017
• Protesters trash the place
• IRS can't keep a secret
• Make way for minimum wage
• Protesters trash the place
• IRS can't keep a secret
• Make way for minimum wage
Legislative and Regulatory Update
February 2015
• Comments needed on another BLM management plan
• AEMA joins with others in lawsuit asking court to set aside illegal settlement
Montana's Virginia City Has Golden Legacy
December 2001
The discovery of gold at Alder Creek, centrally located in Madison County, Montana, was unusually well documented, with the date and time placed at May 26th, 1863, at about 4 o’clock in the afternoon. A group of six miners had been searching the area with little luck until the leader, Bill Fairweather, spotted an exposed area of promising bedrock. He dug up a shovel full of dirt and put it in Henry Edgar’s pan for washing. About the same time that Edgar was busy washing out the pan, Fairweather was poking around the bedrock with his pocketknife. Both spotted the color of gold at once.
The discovery of gold at Alder Creek, centrally located in Madison County, Montana, was unusually well documented, with the date and time placed at May 26th, 1863, at about 4 o’clock in the afternoon. A group of six miners had been searching the area with little luck until the leader, Bill Fairweather, spotted an exposed area of promising bedrock. He dug up a shovel full of dirt and put it in Henry Edgar’s pan for washing. About the same time that Edgar was busy washing out the pan, Fairweather was poking around the bedrock with his pocketknife. Both spotted the color of gold at once.
The Bawl Mill
November 2002
• “Dole”ing out spam
• Martinis with the Mayor
• FBI is afraid of a mouse
• Politically and fashionably correct
• “Dole”ing out spam
• Martinis with the Mayor
• FBI is afraid of a mouse
• Politically and fashionably correct
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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
