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How To Locate Diamonds

How to locate diamonds: This article focuses on the principal host rock for diamond and describes some gemstones (and kimberlitic indicator minerals) typically found with diamond.

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Legislative and Regulatory Update


• Alaska Dredging Draft General Permit AKG-37-1000
• Where the candidates stand

Will California Dredging Survive?


Assembly Bill 1032 has passed the California House of Representatives. The bill was authored by CalTrout and the Karuk Tribe, then introduced by Representative Lois Wolk.

The Tangential Impulse Water Wheel in California Gold Mining History—Part I


The modern tangential impulse water wheel, a device best suited for hydroelectric power production where high water head is available, is an ingenious device born in the historic gold mining industry of California in the 19th Century.

The Bawl Mill


• What budget deficit?
• Congressional underdog...
• More than just 12 angry men...

Ask The Experts


• How small should I crush my hard rock ore?

The Tangential Impulse Water Wheel in California Gold Mining History—Part II


Even before Pelton relocated in San Francisco in 1888, many other competitive foundries and machine shops chose to enter the water wheel market. These firms were already busy with the mining trade, producing hoists, stamp mills, ore carts, Cornish pumps, crushers, grinders, compressors and drills.

Legislative and Regulatory Update


  • Budd-Falen in line to become next director at BLM
  • Ten national monuments slated for changes or reductions
  • California adds another fee

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The Bawl Mill   • The Lost Silver Triangle of the Sierra Madre—Conclusion: Tayopa, Guaynopa, and Guaynopita   • The Greenwood Gold Project   • Miners Go To Work In Washington   • Natural Crystalline Gold   • The Vore Mine   • Tools of the Modern Prospector: The GPS   • Whitehall Mine Foregoing Closure   • Work Begins At Rock Creek Mine   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices   • The National Mining Hall of Fame to Induct Four   • Looking Back

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Legislative and Regulatory Update

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