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Ask the Experts
August 2007 by Staff
Q: Does anyone know of an electrowinning instrument that will plate (heavy plate) rhodium and iridium? I have both in solution. (Solution content = 262.9 oz/ton of iridium; 14.9 oz/ton rhodium.)If I have precious metals in solution in bulk, say 620 to 1,000 gallons, is there a facility to extract the precious metals out? If so, can each be isolated?
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Prospecting With Limited Equipment
June 2002
There are situations where small-scale miners cannot use dredges or high bankers. This is when it’s time to join the ranks of the old timers and their use of hand methods. Back when a gold pan, pick and shovel and sluice or rocker box were the...
There are situations where small-scale miners cannot use dredges or high bankers. This is when it’s time to join the ranks of the old timers and their use of hand methods. Back when a gold pan, pick and shovel and sluice or rocker box were the...
Mining Stock Quotes and Mineral & Metal Prices
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5th Circuit Ruling May Benefit Miners
April 2011
This ruling comes at an opportune time, just as suction dredge miners are dealing with new proposed regulations in several western states. Be sure to cite this case when you provide comments on the regulations!
This ruling comes at an opportune time, just as suction dredge miners are dealing with new proposed regulations in several western states. Be sure to cite this case when you provide comments on the regulations!
New Regulations for Major Precious Metal Dealers
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The Bush administration, in its latest effort to nab drug lords and terror financiers, will require major dealers in gold, diamonds and other precious metals and gems to set up comprehensive programs to combat money laundering, announced the Treasury Department.
The Bush administration, in its latest effort to nab drug lords and terror financiers, will require major dealers in gold, diamonds and other precious metals and gems to set up comprehensive programs to combat money laundering, announced the Treasury Department.
New Life for the Suction Nozzle
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The suction nozzle was one of the first Venturi nozzles to be used in the dredging business. Years later it was replaced with the straight Venturi system, which is sometimes referred to as a “log.” The main benefit of the log is that the operator only needs a suction hose with a short nozzle.
The suction nozzle was one of the first Venturi nozzles to be used in the dredging business. Years later it was replaced with the straight Venturi system, which is sometimes referred to as a “log.” The main benefit of the log is that the operator only needs a suction hose with a short nozzle.
Looking Back
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Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Ask The Experts: Can you help me identify these items?
June 2010
Q: Can you help me identify these items?
Q: Can you help me identify these items?
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The Bawl Mill
• The Basics of Small-Scale Heap Leaching with Cyanide
• Will California Dredging Survive?
• Prospecting For Gold—The Osborne/Herman Hardrock Mine
• Journeys in the Kingman Quadrangle
• From Spanish Mine to Modern-Day Exploration: The Historic Gold-Silver Camp of Palmarejo
• Spanish Police Seize Ship in Treasure Fight
• Looking Back
• Gold Mine Proposed in Jefferson County
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
