All Articles
More Tips for Evaluating Ores
July 2007 by Charles L. Butler
Tabling and jigging are two relatively inexpensive methods for recovering the “free particle values” from the noble metal ores. However, not all ores contain their values as free particles. In fact, many ores contain appreciable amounts of “metallic salts” that readily dissolve in one’s system water and continue to migrate right along with this water.Additional articles that might interest you...
Prospecting With a Magnetometer
December 1999
Swedes were the first to note variations in the Earth's magnetic field, circa 1640, and they were the first to use the dip needle. They made the first magnetometer in 1870.
Swedes were the first to note variations in the Earth's magnetic field, circa 1640, and they were the first to use the dip needle. They made the first magnetometer in 1870.
Looking Back
November 1999
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.
Lake County "Diamonds"—Renewed Value for an Old Favorite
August 2003
A Northern California county is experiencing a renewal in the desirability and subsequent value of an old favorite: Lake County “diamonds.” These stones are not true diamonds, but for generations they have held a special place in the...
A Northern California county is experiencing a renewal in the desirability and subsequent value of an old favorite: Lake County “diamonds.” These stones are not true diamonds, but for generations they have held a special place in the...
The Bawl Mill
May 2012
• Hotline turns up the heat
• Mad Men arrested for living up to their name
• Hotline turns up the heat
• Mad Men arrested for living up to their name
Melman on Gold & Silver
November 2007
World stock markets recovered from the brink of catastrophe to post sterling performances, based in large part on a one-half percent reduction in the Fed Funds rate enacted by the Federal Reserve Board.
World stock markets recovered from the brink of catastrophe to post sterling performances, based in large part on a one-half percent reduction in the Fed Funds rate enacted by the Federal Reserve Board.
Ask the Experts
July 2014
What to do with black sands
What to do with black sands
2004 National Mining Hall of Fame Inductees
July 2004
The six inductees are Georgius Agricola, David William Brunton, Herbert E. Goodman, David Ray Mitchell and Robert Peele.
The six inductees are Georgius Agricola, David William Brunton, Herbert E. Goodman, David Ray Mitchell and Robert Peele.
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The Bawl Mill
• Ask the Experts
• The Mountain Gate Mine
• The Basics of Small-Scale Heap Leaching with Cyanide Part I—History, Suitablility and Permitting
• Oregon Suction Dredge Permit Update
• In Pursuit of Gold and Silver in the Sierra Madres—Buying the Pilot Mill
• Life in the Alaska Gold Rush
• More Small-Scale Miners Attracted by Gold Prices
• Gold in New Zealand
• Ready “Ore” Not, Uranium Boom is On Again
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
