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Mining Stock Quotes and Mineral & Metal Prices
September 2000 by Staff
Identifying the Noble Metals Simple Tests That Work
Using a porcelain evaporating dish, place concentrates or head ore, equal to a tablespoon, in 60cc of aqua regia. Boil almost to dry, then add 10cc HCl (hydrochloric or muratic acid) and heat for a few minutes, and then add 30cc of water and bring to boil. Let cool while the solids are being allowed to settle. Using a pipette...
Ask The Experts: How to remove precious metals from lead?
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?
Home Office Deductions
The Internal Revenue Service recently announced (IR-2013-5) a new, simplified option for those who use a home office, which would apply to owners of home-based mining or prospecting operations and businesses.
Melman on Gold & Silver
Banking problems continue to find their way into the world’s financial media, and we note below that another nation, Slovenia, is now grabbing attention with a banking crisis of their own as well as a downgrading of their national bonds by Moody’s Investment Services.
PLP Update
The changes we are seeking will most definitely help prospectors, small operations and dredgers. If you haven’t yet read our proposals, you’ll find a link to it at the end of the online version of this article.
Mineralized Calderas in Colorado
A caldera is a large circular volcanic depression caused by collapse due to the removal of molten magma from an underlying magma chamber. The removal of magma is due to explosive venting of lava and pyroclastic material.
Gold at Dale, California
The Dale Mining district is located in the Pinto Mountains, 18 to 25 miles east and southeast of Twentynine Palms, by way of the Twentynine Palms highway and the unpaved Gold Crown road.
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The Bawl Mill
• Over the Divide
• A Word from the Editor
• Guest Editorial—Globalizing Mining in America, Part II
• Gold Point, Nevada—A One-Man Mining Town Restoration
• Rare Coin Makes a Mint at Auction
• Letter to the Editor
• Jackson Hole Gold, Wyoming
• Picks & Pans: Big River Dredging in Northern California
• Fake Assays & Assayers
• Turning Acid Mine Drainage Into Drinking Water?—Grass Valley Company May Have the Answer
• Everything You Need to Know About Gold Wheels
• Exceptional Gold Dredging in New Zealand
• Lightning Creek, British Columbia
• Mine Reopening Could Revive Region
• Willow Creek Dredging Trip
• Melman on Gold & Silver
• More Treasure From Sunken Ship
