Rediscovering Placerville, California Part II
March 2011
To get to the gold, the miners had to remove the shale pieces and stack them on the sides while sluicing the remaining material through their boxes.
To get to the gold, the miners had to remove the shale pieces and stack them on the sides while sluicing the remaining material through their boxes.
Prospecting With The Help of Fluvial Geomorphology
March 2011
Quiz yourself about the stream in figure 5. Based on your previous knowledge of where gold is found in a stream and in this article, where do you think you will find the most gold?
Quiz yourself about the stream in figure 5. Based on your previous knowledge of where gold is found in a stream and in this article, where do you think you will find the most gold?
Oregon Anti-Dredging Bill
March 2011
SB 765...would tax suction gold dredgers by charging a $50 annual fee for in-state dredgers and a whopping $2,500 fee for out-of-state dredgers for each county where the miner intends to dredge.
SB 765...would tax suction gold dredgers by charging a $50 annual fee for in-state dredgers and a whopping $2,500 fee for out-of-state dredgers for each county where the miner intends to dredge.
Mud Men: Pocket Miners of Southwest Oregon Part II
March 2011
How many more clays seams lie adjacent to known shear zones and quartz veins in the pocket areas of southwestern Oregon?
How many more clays seams lie adjacent to known shear zones and quartz veins in the pocket areas of southwestern Oregon?
Cue Resources Seeks Uranium in Paraguay
March 2011
Cue’s recent development of the Yuty Project has coincided with growing strength in the general uranium market. The price for fuel-grade uranium has risen to above $70 per pound for the first time in several years...
Cue’s recent development of the Yuty Project has coincided with growing strength in the general uranium market. The price for fuel-grade uranium has risen to above $70 per pound for the first time in several years...
The Gold of Plumas de Oro
March 2011
Their rewards were far better than they had anticipated, resulting in one of the best clean-ups they had ever seen.
Their rewards were far better than they had anticipated, resulting in one of the best clean-ups they had ever seen.
Melman on Gold & Silver
March 2011
...rising inflation has been perhaps the greatest single positive influence during past golden bull markets, and the fires of inflation, particularly those driven by rising food prices, do appear to be glowing ever brighter.
...rising inflation has been perhaps the greatest single positive influence during past golden bull markets, and the fires of inflation, particularly those driven by rising food prices, do appear to be glowing ever brighter.
The Bawl Mill
February 2011
• Unsustainable is an understatement
• Famous last words...
• Their good deed did not go unnoticed
• Truth in Advertising
• Unsustainable is an understatement
• Famous last words...
• Their good deed did not go unnoticed
• Truth in Advertising
Our Readers Say
February 2011
The Basics of Crushing and Milling Operations
February 2011
In processing gold, silver and other valuable ores, the minerals containing the values, such as metallic gold, silver-bearing sulfides or other minerals, must be freed from the surrounding host rock before those valuable minerals can be captured.
In processing gold, silver and other valuable ores, the minerals containing the values, such as metallic gold, silver-bearing sulfides or other minerals, must be freed from the surrounding host rock before those valuable minerals can be captured.
Ask The Experts—What minerals are magnetic? Can rare earth magnets capture platinum?
February 2011
What minerals are magnetic? I have heard that super magnets (rare earth magnets) can capture platinum. True?
What minerals are magnetic? I have heard that super magnets (rare earth magnets) can capture platinum. True?
Ask The Experts—Jet nozzle or suction nozzle? Which is best for my highbanker?
February 2011
I have a highbanker, and I am considering adding a suction piece to make it a combo.
I have a highbanker, and I am considering adding a suction piece to make it a combo.
Ask The Experts—Precious metals in water?
February 2011
How can I determine if there are precious metals in the groundwater?
How can I determine if there are precious metals in the groundwater?
Rediscovering Placerville, California
February 2011
Several areas came to mind, but each was eliminated for one reason or another. One that seemed to be hanging on was the old historic mining town called Placerville.
Several areas came to mind, but each was eliminated for one reason or another. One that seemed to be hanging on was the old historic mining town called Placerville.
Eastern Arizona: Gold and Base Metal Deposits—Part I
February 2011
Arizona is well-known for its copper-gold porphyries and massive base metal-gold sulfide deposits such that primary gold deposits in the state are often overshadowed.
Arizona is well-known for its copper-gold porphyries and massive base metal-gold sulfide deposits such that primary gold deposits in the state are often overshadowed.
Over The Divide—Daryl J. Nelson
February 2011
We were very sad to learn that Darryl J. Nelson, long-time owner and operator of Reno Prospectors Supply in Reno, Nevada, died December 18, 2010...
We were very sad to learn that Darryl J. Nelson, long-time owner and operator of Reno Prospectors Supply in Reno, Nevada, died December 18, 2010...
Mud Men: Pocket Miners of Southwest Oregon—Part I
February 2011
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
Legislative and Regulatory Update
February 2011
• Backdoor Wild Lands order
• PLP reports on latest dredge lawsuit
• Massive lands bill avoided
• No cap and trade for now
• RS-2477 rights affirmed
• Backdoor Wild Lands order
• PLP reports on latest dredge lawsuit
• Massive lands bill avoided
• No cap and trade for now
• RS-2477 rights affirmed
Cyanide-Free Gold Separation
February 2011
Some ores—mostly those with a high free gold content—are very amenable to gravity concentration. Well oxidized ores containing coarse gold are usually best for non-cyanide processes. Ores with significant sulfide content may require the...
Some ores—mostly those with a high free gold content—are very amenable to gravity concentration. Well oxidized ores containing coarse gold are usually best for non-cyanide processes. Ores with significant sulfide content may require the...
