All Articles
Fire Agate in Arizona
June 2002 by Edgar B. Heylmun, PhD
Agate, a banded form of chalcedony (cryptocrystalline quartz), has been used as a gemstone for over 7,000 years. Romans cut and polished agate, and this practice was taken to new heights in Germany in the 16th century.Additional articles that might interest you...
Prospecting for Silver With a Geiger Counter
January 2001
Light-colored volcanic tuff or tuffaceous sandstone often contains small amounts of uranium, enough to be detected with a sensitive radiation detector. Sometimes, the mass effect of the radiation is substantial.
Light-colored volcanic tuff or tuffaceous sandstone often contains small amounts of uranium, enough to be detected with a sensitive radiation detector. Sometimes, the mass effect of the radiation is substantial.
Ask The Experts
September 2015
What are the steps for filing a mining claim?
What are the steps for filing a mining claim?
The Ocampo District, Chihuahua
April 2003
The village of Ocampo is wedged in a canyon about 178 miles, by Mexican Highway 16, west of the city of Chihuahua. It is a few miles west of Basaseachic Falls, and a few miles south of Highway 16, in high chaparral at an elevation of 6,500 feet. The completion of Highway 16 across the Sierra Madre Occidental greatly improved access to the region...
The village of Ocampo is wedged in a canyon about 178 miles, by Mexican Highway 16, west of the city of Chihuahua. It is a few miles west of Basaseachic Falls, and a few miles south of Highway 16, in high chaparral at an elevation of 6,500 feet. The completion of Highway 16 across the Sierra Madre Occidental greatly improved access to the region...
Ask The Experts
May 2016
• Are these gold amounts large enough to interest a mining company?
2001 World Gold Panning Championships
February 2002
Maryborough, Victoria Australia
Mike Sutton, Reigning
California State Champion, Takes Gold
Maryborough, Victoria Australia
Mike Sutton, Reigning
California State Champion, Takes Gold
Agnico-Eagle to Open Gold Mine in Finland
July 2006
Agnico-Eagle Mines will open Europe’s largest gold mine in northern Finland in 2008, the Canadian company and local officials said.
Agnico-Eagle Mines will open Europe’s largest gold mine in northern Finland in 2008, the Canadian company and local officials said.
Ask The Experts - Could I stake out a 20-acre claim with a waterway running through it just as I would a lode claim?
September 2011
Q: Could I stake out a 20-acre claim with a waterway running through it just as I would a lode claim?
Q: Could I stake out a 20-acre claim with a waterway running through it just as I would a lode claim?
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The Bawl Mill
• ICMJ Elected Prospecting Magazine of 2002
• Mining Investment—Or Fraud?
• Gold in Suriname
• Golden Age of Gold Dredges
• Prospecting With Limited Equipment
• Looking Back
• Beryllium in Utah
• Company Notes
• Picks & Pans: The Gold of "Eldorado Canyon"—Mariposa County, California
• The Canton Lead
• NAS Agrees to Review Superfund Science
• Tight Budgets Force Forest Service to Cut Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
