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Ask The Experts: How to remove precious metals from lead?
August 2010 by Thom Seal, PhD, PE
I have a large amount of precious metals, gold and silver, mixed in with lead. Cupelling is expensive. What method can I use to extract the gold and silver without cupelling?Additional articles that might interest you...
Drywashing and Detecting for Eluvial Placer Gold Research is the Key to Success—Part II
October 2005
Before heading out to work the same old ground, or blindly seeking a previously unknown gold placer area to drywash or detect, maybe you would benefit from doing a little research.
Before heading out to work the same old ground, or blindly seeking a previously unknown gold placer area to drywash or detect, maybe you would benefit from doing a little research.
First Load of Concentrate Leaves Reopened Ruth Mine
November 2004
Five years after depressed copper prices forced the Robinson mine to shut down, the first truckload of concentrate pulled out in what its new owner sees as a renewal of the facility and Ely-area residents hope is a rebirth of the region.
Five years after depressed copper prices forced the Robinson mine to shut down, the first truckload of concentrate pulled out in what its new owner sees as a renewal of the facility and Ely-area residents hope is a rebirth of the region.
How to Complete Assessment Work and Claim Maintenance
July 2009
To put yourself in the best position you need to be doing all your assessment work properly and filing the necessary paperwork in a timely manner. Most prospectors don’t know a lot about the details of doing assessment work...
To put yourself in the best position you need to be doing all your assessment work properly and filing the necessary paperwork in a timely manner. Most prospectors don’t know a lot about the details of doing assessment work...
Beginner's Luck
July 2010
Their first cleanup total was more gold than they had ever found. These guys were deliriously overjoyed with their good fortune.
Their first cleanup total was more gold than they had ever found. These guys were deliriously overjoyed with their good fortune.
San Francisco Mint and US Gold Reserves
June 2007
In 1717, Sir Isaac Newton, Master of the British Mint, established a fixed price for gold that was equivalent to around US$20.00 per ounce. This price was for bullion gold, refined to a purity of twenty-two karats (.917 fine).
In 1717, Sir Isaac Newton, Master of the British Mint, established a fixed price for gold that was equivalent to around US$20.00 per ounce. This price was for bullion gold, refined to a purity of twenty-two karats (.917 fine).
The Bawl Mill
March 1999
• Airlines' loss of passenger baggage doesn't seem so bad after this...
• Hey guys, the women are passing us up in the education department...
• It doesn't sound like they're planning for a Happy New Year...
• Wonder if he still feels that he did the right thing?...
• Airlines' loss of passenger baggage doesn't seem so bad after this...
• Hey guys, the women are passing us up in the education department...
• It doesn't sound like they're planning for a Happy New Year...
• Wonder if he still feels that he did the right thing?...
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• Legislative and Regulatory Update
• Commercial Placer Mining With Jigs
• Ask The Experts: Bench Top Crushers
• How to Properly Ground Balance to Find the Most Gold
• Authorities Search for Lost Treasure Hunters
• Alaska Geologist Survives Grizzly Attack
• The Guaniamo Diamond Area, Venezuela—Part II
• How California Became the Golden State
• The Rocky Bar Mining District, Idaho
• Mining Stock Quotes, Mineral & Metal Prices
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The Jenkins Mine Project—The Golden Rules of Science
• Melman on Gold & Silver
• ICMJ Again Matches Funds For PLP Donations
