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Ask the Experts
August 2007 by Staff
Q: Does anyone know of an electrowinning instrument that will plate (heavy plate) rhodium and iridium? I have both in solution. (Solution content = 262.9 oz/ton of iridium; 14.9 oz/ton rhodium.)If I have precious metals in solution in bulk, say 620 to 1,000 gallons, is there a facility to extract the precious metals out? If so, can each be isolated?
Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Legislative and Regulatory Update
• Comment deadlines approaching for frog listings and habitat
• EPA seeks more control
• Comments due in Washington
• California dredging moratorium
• PLF sues to delist polar bear
Man Who Died In Yellowstone In 2017 Was Looking For Hidden Treasure
It’s been seven years since Forrest Fenn announced the existence of the buried treasure, said to be worth nearly $2 million. It has prompted thousands to comb areas of New Mexico, Yellowstone National Park and elsewhere.
Legislative and Regulatory Update
- Some mining claim fees increase
- Oregon miners file appeal
- US Fish & Wildlife law enforcement policing powers restrained
Prospecting Homonyms
Three homonyms come to mind when I think of gemstones, gold and vegetables: carrot, carat and karat. Let’s look at carrot first.
Legislative and Regulatory Update
• California dredging update
• On a related issue, SB 233
• EPA and greenhouse gases
Subscription Required:
The Bawl Mill
• The Basics of Small-Scale Heap Leaching with Cyanide
• Will California Dredging Survive?
• Prospecting For Gold—The Osborne/Herman Hardrock Mine
• Journeys in the Kingman Quadrangle
• From Spanish Mine to Modern-Day Exploration: The Historic Gold-Silver Camp of Palmarejo
• Spanish Police Seize Ship in Treasure Fight
• Looking Back
• Gold Mine Proposed in Jefferson County
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
