All Articles
Enrichment of Gold Veins
November 2000 by Edgar B. Heylmun, PhD
Most of the world's great gold mines are in secondary (supergene) enrichments in veins and stockwork, brought about by physical and chemical processes.
Additional articles that might interest you...
Mining Stock Quotes and Mineral & Metal Prices
November 2003
Looking Back
February 2005
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
The Lucky Shot Mine
February 2005
I hobbled around on the broken up, sorted rock pile. Watching where I stepped, I kept my eye open for quartz with a gray-blue color imbedded throughout the samples I picked up.
I hobbled around on the broken up, sorted rock pile. Watching where I stepped, I kept my eye open for quartz with a gray-blue color imbedded throughout the samples I picked up.
Buying a Mining Claim: Questions to Ask
March 2013
At one time or another, many miners will look seriously at purchasing a mining claim...Usually it’s a significant financial commitment, so how do you know if you are getting a good deal?
At one time or another, many miners will look seriously at purchasing a mining claim...Usually it’s a significant financial commitment, so how do you know if you are getting a good deal?
Ask The Experts
January 2016
What are these rocks?
What are these rocks?
BLM Swindles War Hero Out of Gold Mine
September 2002
The Purple Heart license plates on Oliver Gregerson’s car inspire respect from everyone, except employees of the federal government. Oliver Gregerson says he has indisputable videotape evidence that the Bureau of Land Management (BLM) is guilty of criminal conspiracy and fraud, and he is taking them to federal court to prove it.
The Purple Heart license plates on Oliver Gregerson’s car inspire respect from everyone, except employees of the federal government. Oliver Gregerson says he has indisputable videotape evidence that the Bureau of Land Management (BLM) is guilty of criminal conspiracy and fraud, and he is taking them to federal court to prove it.
The Bawl Mill
February 2010
• Copenhagen—Don't ask, don't tell
• Will consider lease or trade
• By the numbers
• Copenhagen—Don't ask, don't tell
• Will consider lease or trade
• By the numbers
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The Bawl Mill
• Our Readers Say
• The Assay of High Iron Gold Ores
• The Patch
• History of Mining—Bradshaw Mountains, AZ (Part I)
• Picks & Pans—The Green Rock, Rattlesnakes, Good Gold and Ruth's Mine
• The Oretron
• Silver Hill, North Carolina
• Residual, Lateritic and Gossan "Soils" as Potential Nuggetshooting Sites
• Hardrock in Downieville
• Looking Back
• Company Notes
• Gold in Northern Baja California
• California State Gold Panning Championship Results
• Melman on Gold & Silver
• V.P. Contender Addresses Mining Show
