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Legislative and Regulatory Update
December 2006 by Scott Harn
• Election fallout• Bad news in Bolivia
Ask the Experts
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?
Kerry Proposes Large Fees on Miners
John Kerry’s proposal to increase mineral royalties to raise money for national parks has drawn strong opposition from officials and mining interests in Nevada, which produces 81 percent of the nation’s gold.
Gold Deposits in Skarn
Skarn consists of coarse-grained calcium, magnesium, iron, and aluminum silicates formed by hydrothermal solutions, which replace limestone or dolomite near the contact with an igneous intrusion. The contact metamorphism is usually caused by an intrusion such as quartz monzonite, granodiorite, or similar rock type, which may or may not be mineralized.
The Bawl Mill
• Drug smuggling tunnels filled with environmental delays and red tape
• Did we make the list?
• A whopper of an error
Pediments
A pediment is a broad, gently sloping erosion surface or plain of low relief that is often found in arid and semi-arid regions at the base of a receding mountain front. The example shown is from the Palo Verde Ranch 15-minute topographic quadrangle, southwest of Tucson, Arizona. This is one of the best examples the writer has ever seen.
Ask The Experts: Assay problem or recovery problem?
Q: I have tried various leaching techniques from which I cannot get a precipitate.
Glacial Gold in Ohio
Ohio is an industrialized, midwestern state with a population of 11.5 million and an area of 40,953 square miles. Annual precipitation is about 40 inches, enough to give rise to hardwood forests...
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The Bawl Mill
• Researching and Staking Mining Claims
• The Goodnews Bay Platinum Fields
• Special Rock
• The Business of Mining: Cars, Trucks and Tax Deductions
• The Kern River Gold Rush
• Finding Gold in Mokelumne River Canyon
• Important Court Cases
• Smugglers Causing Problems in South Africa
• Market Spotlight: Platinum in Demand
• Melman on Gold & Silver
• Mining Stock Quotes & Mineral and Metal Prices
• Looking Back
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