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The Eagle and High Peak Mines of Julian, California
September 2002 by Richard H. Peterson, PhD
At an altitude of over 4,000 feet, in the mountainous terrain of eastern San Diego County, lies the once productive Julian Mining District. Beginning with placer prospecting in 1869, this area moved rapidly into underground quartz or vein mining for gold.Additional articles that might interest you...
Hecla to Reopen Lucky Friday Mine
July 2012
Heclas’s underground Lucky Friday Mine in Idaho is scheduled to reopen following a series of accidents, which included the death of two miners.
Heclas’s underground Lucky Friday Mine in Idaho is scheduled to reopen following a series of accidents, which included the death of two miners.
Company Notes
December 2002
• Sterling Mining Company
• Pan American Silver Corp.
• Vista Gold Corp.
• Fronteer Development Group
• US Gold Corp.
• NovaGold Resources
• Sterling Mining Company
• Pan American Silver Corp.
• Vista Gold Corp.
• Fronteer Development Group
• US Gold Corp.
• NovaGold Resources
Tantalum
July 1999
Tantalum is a refractory metal which is non-toxic, ductile; easily fabricated, has a high melting point, is highly resistant to corrosion and is a good conductor of heat and electricity. It has the unique ability to transmit an alternating current in only one direction.
Tantalum is a refractory metal which is non-toxic, ductile; easily fabricated, has a high melting point, is highly resistant to corrosion and is a good conductor of heat and electricity. It has the unique ability to transmit an alternating current in only one direction.
Ask the Experts
June 2014
• Reopening closed areas
• Reopening closed areas
Picks & Pans: Mexican "Edventure"
July 2004
Where can you find 80-degree weather, 76-degree water, 30-50 foot visibility, all the seafood you can eat, beautiful friendly people—and placer gold?!
Where can you find 80-degree weather, 76-degree water, 30-50 foot visibility, all the seafood you can eat, beautiful friendly people—and placer gold?!
Ask The Experts
July 2015
Q: What amount of silver is considered the best find ever?
Q: What amount of silver is considered the best find ever?
Prospecting for Pegmatites
July 2015
…in some cases pegmatites have produced individual mineral crystals that are enormous, attaining lengths of over 40 feet long, and many of the world’s largest mineral crystals are examples that were found within pegmatite deposits.
…in some cases pegmatites have produced individual mineral crystals that are enormous, attaining lengths of over 40 feet long, and many of the world’s largest mineral crystals are examples that were found within pegmatite deposits.
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