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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?Legislative and Regulatory Update
• Idaho EPA may pare back agressive water stance
• House panel recommends changing federal mineral royalty
• Gold mining company raises funds to fight initiative
• Comment period extended
Proposed Regulations for California Suction Dredging
One of the most asinine proposals in the SEIR is to require miners to state when and where they will be dredging. This information would be accessible to the public, which would make them prime candidates for getting their homes burglarized while they are out mining.
Melman on Gold & Silver
As the wags have been putting it recently, it looks like the United States is caught between “Iraq and a hard place.” Every day for the past month we have read headlines about the likelihood of immediate war, and, based on those headlines, gold, petroleum and the financial markets have gone off on their tangents.
Decoding Dredge Capacity
Some typical questions that you might consider asking yourself about purchasing a dredge might be…
Confluence Placers
Confluences of placer streams are well known as concentration sites for heavy minerals. The basic reason is that...
The Bawl Mill
• Litterbugs bite business
• Marriage counseling needed?
• Congressman receives a new term...
Subscription Required:
The Bawl Mill
• 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
Free:
The Jenkins Mine Project—The Golden Rules of Science
• Melman on Gold & Silver
• ICMJ Again Matches Funds For PLP Donations
