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Picks & Pans: George Duffy Jr.—Pocket Miner Extraordinaire
September 2004 by Jim Straight
During the Miocene and Pliocene mid-Tertiary Epochs, the Great Basin, Mojave, and Sonoran deserts within parts of California, Nevada, and Arizona became the source—the genesis—of ubiquitous epithermal “precious metal” fissure-gold veins associated with extensive acidic volcanic lava flows that blanketed much of the Cordillera during this time.Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Mother Lode Leaf Gold
After removing about six inches of dirt and cobbles, the sound was a bit more recognizable. I was now confident that there was a definite target and not just a ground noise.
The Essence of Gold Prospecting
When doing your initial armchair research and selecting potential areas to explore, consider all the indicators, both natural and man-made.
Prospecting for Silver With a Geiger Counter
Light-colored volcanic tuff or tuffaceous sandstone often contains small amounts of uranium, enough to be detected with a sensitive radiation detector. Sometimes, the mass effect of the radiation is substantial.
Buyer Beware! Counterfeit Metal Detectors
When I was recently in West Africa, I got to see and play with my first, phony, Chinese knock-off metal detector.
World Gold Council Launches New Gold Bullion Securities
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Thanks to the efforts of the World Gold Council (WGC), investors in the yellow metal now have an excellent new way in which to participate in gold’s price movements.
Drywashing in Black Canyon, Arizona
May 2016After the hike and a quick snack break we gathered a few buckets of material to really dial in the drywasher for the most efficient recovery. This involves leveling the unit, setting the riffle box drop angle and regulating the speed in which the material is processed.
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Please Note:
• The Bawl Mill
• Kerry Proposes Large Fees on Miners
• Is a Gold Rush Coming to the Iron Range?
• The Klamath Oldland
• Baker City is Defined by Gold Rush
• Coeur Alaska Hopes to Begin Work on Gold Mine This Fall
• Crater of Diamonds, Arkansas
• Company Plans to Develop Cabinet Mountains Mine
• I-147 Before Montana Supreme Court
• Diamond Exploration and Mining Heating Up in North America
• Gold in Serbia
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
