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Gold Deposits in Skarn
July 2003 by Edgar B. Heylmun, PhD
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 "Madonna Nugget"—A Weekend Hunt to Remember
I worked my way to a flat area along a ridge where I could see a quartz blowout. As I got within 100 feet of it, I started seeing rock that I knew to be associated with gold.
Guest Editorial—Changing the Rules
Increasing restrictions on use of public lands are causing a widening tear through the country's economic and social fabric.
Gallium and Germanium in Utah
The high-tech industries are making use of a number of so-called “minor” metals, many of which are obtained as byproducts of copper, lead, or zinc mining. Some of the minor metals have properties that are ideal for certain applications and, in some cases, advancements in technology are being held back because of a shortage of the metals.
Detector Brings New Life to An Old Lode Mine
…it was immediately evident the previous owner had not been using a detector. During just a few months of working the dumps part-time, he recovered gold in quartz specimens valued in excess of $40,000.
Mining Stock Quotes and Mineral & Metal Prices
Legislative and Regulatory Update
• The 1872 Mining Law
• Roadless decision due soon
• MSHA Review Commission
• Sage grouse decision due soon
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.
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The Bawl Mill
• Our Readers Say
• PLP Members Win Occupancy Case—Appeals Continue
• Prospecting for Iron in Alaska
• Picks & Pans: Highbanking on the American River
• Platinum Firm, Palladium to Remain Weak
• Spencer Opal Deposits, Idaho
• Company Notes
• Hillside Placers
• Elko Mining Expo a Success
• Gold Prospecting in Alberta
• National Mining Hall of Fame to Induct Six
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
• Looking Back
