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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...
Doc Livingston
February 2007
Charles “Doc” Livingston was born September 28, 1920, in Veve, Indiana. At the ripe old age of 13, he moved to a bustling mining town called Iowa Hill, in Placer County, California. For the next 64 years he worked in, around, or out of the historic mining town.
Charles “Doc” Livingston was born September 28, 1920, in Veve, Indiana. At the ripe old age of 13, he moved to a bustling mining town called Iowa Hill, in Placer County, California. For the next 64 years he worked in, around, or out of the historic mining town.
Significant Progress for California Suction Gold Dredgers
January 2015
It was a milestone day in the battle to maintain the rights of miners to dredge on federal mining claims in California.
It was a milestone day in the battle to maintain the rights of miners to dredge on federal mining claims in California.
Eight Reasons To Release Oil From The Strategic Petroleum Reserve
August 2008
President George W. Bush lifted the executive moratorium on oil drilling in the Outer Continental Shelf (OCS), which was first established by his father, President George H.W. Bush, in 1990. The current president has argued that the United States should be “drilling for more oil here in America to take the pressure off of gasoline prices.”
President George W. Bush lifted the executive moratorium on oil drilling in the Outer Continental Shelf (OCS), which was first established by his father, President George H.W. Bush, in 1990. The current president has argued that the United States should be “drilling for more oil here in America to take the pressure off of gasoline prices.”
The Ball Mill
May 2003
• This wasn't the UN makeover we were expecting
• Do you have more money than you really need?
• British tabloids "French roast" Chirac
• Reporter comes out of the closet
• This wasn't the UN makeover we were expecting
• Do you have more money than you really need?
• British tabloids "French roast" Chirac
• Reporter comes out of the closet
The Bawl Mill
October 2015
• A bunch of non-Census…
• The (Gina) McCarthy hearings…
Market Spotlight: Platinum in Demand
December 2006
Platinum has run to record highs this year, but it’s not a rush of demand for wedding bands that has boosted prices. It’s diesel.
Platinum has run to record highs this year, but it’s not a rush of demand for wedding bands that has boosted prices. It’s diesel.
A Long Dry Spell
October 2015
Just three weeks ago one of our prospecting team members decided to go back to this location on his own. He had a new detector and wanted to try it out some.
Just three weeks ago one of our prospecting team members decided to go back to this location on his own. He had a new detector and wanted to try it out some.
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• Alaska Geologist Survives Grizzly Attack
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• How California Became the Golden State
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