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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...
Melman on Gold & Silver
Anyone who thinks that investing in, or writing about junior mining shares is easy hasn’t lived through the last month! What we have seen is a virtually endless parade of dynamic and frequently contradictory events. Here are just a few that have occurred in the past thirty days.
Ask The Experts: Can a long range locator probe detect gold in quartz?
Q: I was wondering how such a device could locate a rich gold vein in quartz, for example, since a metal like gold is non-magnetic.
The Golden Highway—Tuolumne County
Heading north into Tuolumne County on California’s Highway 49—the “Golden Highway”—from Mariposa County, you see few traces of the gold rush days because the largest mining town of the period is now covered by Don Pedro Reservoir. If you slow down and take a careful look, along the shores of the lake are numerous streaks of tailings that mark the mines of the old town of Jacksonville.
Carissa Gold Mine Comes Back to Life
The mine will be open for public tours Saturday and Sunday afternoons beginning August 24, lasting into the fall and winter as weather permits.
Metal Detecting for Gold Within Andesite and Basaltic Volcanic Mining Districts
Andesites and basalts are the most common volcanic rocks in the North American Cordillera. The andesites originated within the earth’s continental crust, while the basalts originated within the mantle. According to the Plate Tectonic theory...
Washington Gold & Fish Regulations Update
The Washington Department of Fish & Wildlife (WDFW) announced the release of their new small-scale mining regulations. Public meetings were scheduled at several locations in the state to collect comments, but we learned just prior to press time that the process has come to a halt.
The Bawl Mill
• Homeowner decides it’s time for change...
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• 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
