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Small Mine Selective Blasting
January 2000 by Dr. Ralph E. Pray
Drill holes in a mineralized vein often penetrate hidden layers of poor ore which, after blasting, end up diluting the production quality. Disseminated gold ores carrying two ounces per ton may be identical in appearance to adjacent vein material...
McCaw School of MInes Dedicates Phase II
The McCaw School of Mines in Henderson, Nevada, dedicated Phase II of their unique mining school for kids.
The Wild Rush To Find More Cobalt—Part II
In this second part on cobalt, I will take a look at the various types of cobalt deposits and how you can prospect for them. Who knows—perhaps the next big cobalt strike will be yours.
Detecting at Old Hydraulic Mines
I finally got out recently for my first full, long weekend prospecting trip of the year. Normally I would have been out much sooner, but we had a real late spring in the Sierra Nevada this year with lots of late rain and snow continuing through all...
The Bawl Mill
• Your tax dollars at work
• He's an "expert" in stupidity
• No sense of humor
BLM Runs Check on Assay Services
The Bureau of Land Management (BLM) recently conducted a multi-year study of sixty-five assay laboratories to determine the accuracy of their testing procedures. The laboratories, all located in North America, were provided with ore samples of known concentrations without benefit of identifying the source as BLM. Payment was rendered for the service provided.
2005 California State Gold Panning Championships
Each year this annual event is staged to determine just who is the best of the best, and each year this event becomes larger. This time one hundred ninety contestants decided to prove just how good they were.
Over the Divide —Ronald Richard "Ron" Wendt
We are sad to say that one our most beloved writers, Ron Wendt, passed away on November 10, 2007.
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The Bawl Mill
• Over the Divide
• Our Readers Say
• Letter from the Editor to our Readers and Advertisers
• Administration Considers Bypassing Congress
• First Woman to Draw Mining Pension
• Mohave Mountain Placers, Arizona
• High Court to Reconsider Wilderness Water Rights
• Sixteen to One Takes on MSHA
• Picks & Pans: Gold Mining on Joie Osgood Ranch
• Gold
• Company Notes
• Millie's Tailings
• Placer PGMs in Alaska
• Mogollon—New Mexico's Remote Gold Camp
• ICMJ 9th Annual Photo Contest Results
• The Other Minerals of Mt. Diablo
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
