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A Modern Gold Rush In Sudan
December 2009 by Chris Ralph
A couple of months ago, folks on the US and Aussie online gold forums started noticing that GP4500 detectors (Minelab’s top of the line gold unit) were selling used for prices significantly more than they cost new!Additional articles that might interest you...
Ask the Experts—How do I remove gold from black sands?
April 2007
Q: I’m a fairly new dredger. I was told that the black sands contain fine gold that is tough to see and recover, so I have been saving the black sands when I do my clean up. What method should I use to get the gold out?
Q: I’m a fairly new dredger. I was told that the black sands contain fine gold that is tough to see and recover, so I have been saving the black sands when I do my clean up. What method should I use to get the gold out?
Higher Zinc Price Creates Opportunity
April 2005
Zinc is brittle and crystalline at ordinary temperatures, but when heated to between 110°C and 150°C it becomes ductile and malleable; it can then be rolled into sheets. The bluish-white metal is used principally for galvanizing iron, but also...
Zinc is brittle and crystalline at ordinary temperatures, but when heated to between 110°C and 150°C it becomes ductile and malleable; it can then be rolled into sheets. The bluish-white metal is used principally for galvanizing iron, but also...
Gold and Silver Deposit May Be World's Largest
June 1999
A crater in an undersea volcano off Japan may contain the world's largest gold nugget ever found...
A crater in an undersea volcano off Japan may contain the world's largest gold nugget ever found...
Melman on Gold & Silver
June 2013
Banking problems continue to find their way into the world’s financial media, and we note below that another nation, Slovenia, is now grabbing attention with a banking crisis of their own as well as a downgrading of their national bonds by Moody’s Investment Services.
Banking problems continue to find their way into the world’s financial media, and we note below that another nation, Slovenia, is now grabbing attention with a banking crisis of their own as well as a downgrading of their national bonds by Moody’s Investment Services.
Dredging for Monazite in Idaho
October 2003
The advent of the nuclear age, after World War II, aroused concerns in government circles when officials realized the United States was entirely dependent upon foreign sources of supply for rare earth elements. This prompted the Atomic Energy Commission (AEC) to enlist the US Bureau of Mines Special Minerals Investigation Branch to evaluate monazite-bearing placers in the United States in 1948.
The advent of the nuclear age, after World War II, aroused concerns in government circles when officials realized the United States was entirely dependent upon foreign sources of supply for rare earth elements. This prompted the Atomic Energy Commission (AEC) to enlist the US Bureau of Mines Special Minerals Investigation Branch to evaluate monazite-bearing placers in the United States in 1948.
Lluvia de Oro—A Shower of Gold Awaiting Development in the Sierra Madre—Part II
December 2008
Superintendent Tom Phillips soon returned to the mines with fellow worker Thomas J. Findlay, and began repair work. Phillips had already determined that the machinery had been operated at various times by armed forces...
Superintendent Tom Phillips soon returned to the mines with fellow worker Thomas J. Findlay, and began repair work. Phillips had already determined that the machinery had been operated at various times by armed forces...
Small-Scale Concentrating and Recovery Methods
April 2011
The first step in my recovery process after milling the ore to the desired size is to table it. On this particular ore, I get good results milling it to minus 100 mesh.
The first step in my recovery process after milling the ore to the desired size is to table it. On this particular ore, I get good results milling it to minus 100 mesh.
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