All Articles
Understanding and Evaluating Desert Mineralization for Nuggetshooters
July 2005 by Jim Straight
The primary source of many dryplacers is from the weathering of small to large hardrock sulphide ledges to yield free-gold, soluble salts and iron oxides. Placer gold, both large and small nuggets, can be found from the top inch down...
Additional articles that might interest you...
Drywashing for Eluvial Gold in the Desert—Using a Portable Drywasher and Hand Tools
February 2005
Often the gold being recovered by drywashing is too fine to be recovered by metal detecting. For every “detectable” nugget found, there could be hundreds of smaller flakes of non-detectable size. Thus, for those that “read the ground,” and snipe for areas of favorable placer concentration, drywashing will continue to be both an inexpensive...
Often the gold being recovered by drywashing is too fine to be recovered by metal detecting. For every “detectable” nugget found, there could be hundreds of smaller flakes of non-detectable size. Thus, for those that “read the ground,” and snipe for areas of favorable placer concentration, drywashing will continue to be both an inexpensive...
The Guaniamo Diamond Region, Venezuela—Part I
July 2010
The considerable richness of the gravels is shown by the fact that operators have successfully worked the same river sections for over 20 years.
The considerable richness of the gravels is shown by the fact that operators have successfully worked the same river sections for over 20 years.
Ask the Experts
December 2013
Market for scheelite concentrates?
Market for scheelite concentrates?
Melman on Gold & Silver
April 2017
A matter of some serious concern has developed in the relationship between the prices for gold and silver and the performance of mining share averages.
A matter of some serious concern has developed in the relationship between the prices for gold and silver and the performance of mining share averages.
Arizona's Border Silver Camps
July 2001
Not much has changed along the original stage road that runs easterly from an old schoolhouse northeast of Nogales into the Patagonia Mountains of southern Arizona. Marked on the maps as Duquesne Road, the route has been in use for over 130 years, climbing from the hot desert floor to an almost 6,000-foot elevation pass before dropping back down the eastern slope of the mountains to reach the old mining camps of Washington, Duquesne, and Lochiel.
Not much has changed along the original stage road that runs easterly from an old schoolhouse northeast of Nogales into the Patagonia Mountains of southern Arizona. Marked on the maps as Duquesne Road, the route has been in use for over 130 years, climbing from the hot desert floor to an almost 6,000-foot elevation pass before dropping back down the eastern slope of the mountains to reach the old mining camps of Washington, Duquesne, and Lochiel.
Ready “Ore” Not, Uranium Boom is On Again
July 2007
Plans for 100 new nuclear power plants around the world have pushed the price of uranium skyward and set off a frenzy of exploration in western Colorado and Utah.
Plans for 100 new nuclear power plants around the world have pushed the price of uranium skyward and set off a frenzy of exploration in western Colorado and Utah.
Gold Placers in Italy
August 2018
Gold is a fairly widespread mineral in the Italian Alps and in the Northern Apennines. It is found both in primary mineralization and in past and recent floods.
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The Bawl Mill
• Our Readers Say
• The Montana Tunnels Discovery
• Spreading the Fever
• Forest Service Final Rule—When is a Notice or Plan Required?
• Looking Back
• New Regulations for Major Precious Metal Dealers
• The Paradox Basin—Part I
• The Safety in Tax Deductions for Safety
• A Search for Tantalum
• Copper is King in Arizona
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
