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Gold in Jasperoid

Jasperoid is a jasper-like siliceous rock, in which chalcedony or cryptocrystalline quartz has replaced limestone, dolomite, or shale. It forms the gangue of many important ore bodies. It is stained by iron and manganese oxides into shades of...

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Legislation and Regulation


Exploring Environmental Regulations and the Expansion of the EPA

Over The Divide: Miles John Mitchell


Caught Between A Hard Rock and A Rare Earth Place


The same day, while two of us were heading to Vancouver to attend the mining convention, two others from our team were headed to Nevada to begin loading the millsite equipment.

Map Offers Look at Butte's Mining History


It turns out the old Anaconda Co. really did have 10,000 miles of tunnels beneath this mining city. That’s one of the findings by researchers who have produced a new map that charts the thousands of underground mine shafts here, providing a detailed look at some of Butte’s mining history.

The Bawl Mill


• Gotta Have It, got it!...
• Computer Industry Feeds the Belt Way...
• The pre-game snack of choice at the new Staples Center arena is oysters on the half shell...

Update: Forest Service Interim Rule


On July 9, 2004, Under Secretary of the Department of Agriculture, Mark Rey, published the “Interim Rule.”  By its own terms, the Interim Rule became effective on August 9, 2004, without regard to public comments. Public comments were, however, received until September 7, 2004.

Guinea Africa: Gold, Ebola, and a Monkey Barbecue


With great relief, the equipment I chose worked well, and after shoving into three days what should have been ten days of set-up and testing, we were up and running.

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The Bawl Mill   • Clinton Declares Three More National Monuments   • McCain Derides Clinton Forest Policy   • Foreigners Lure Mining Partners   • Pacific Island Gov'ts Focus on Undersea Mining   • Options Narrowed for Managing Chugach National Forest   • Company Notes   • Diamond Fever   • Underground Geologic Mapping   • New Quarry Regulations in West Virginia   • Ash Fork Calm After Explosives Theft   • Picks & Pans: Mining in Ghana   • Little Rocky Mountains, Montana   • Collector Reaches New Lows to Find Bottles   • Chinese Camp, California and the Tong War of 1856   • Millie's Tailings   • Visionaries, Scoundrels, and Gamblers   • Executive Defends Special Mill Site Exemption   • Chasing the Ghosts of Forty-Niners   • Washoe County Balks at Black Rock Desert Plan   • State's Only Gold Mine Processes Last Precious Ore   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices   • Looking Back

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Legislative and Regulatory Update

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