All Articles
Gold in Jasperoid
February 2000 by Edgar B. Heylmun, PhD
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...
Guest Editorial—Globalizing Mining in America, Part I
Is it environmental concern that's driving mining out of the United States or rather politics on the grandest scale?
Recreational Mining in the Cache Creek Mining District, Alaska
The mining district is more than 110 years old, but the two recreational mining areas are new. The State of Alaska designated the Petersville Recreational Mining Area within the past year and the Alaska Gold Mining Camp is not much older, so you can expect to find some unmined ground!
Care and Lubrication of a Model 13 Laboratory Wilfley Table
A Wilfley table works best when all of the mineral being run across it (the pulp) is about the same size. For this reason, I took a good look at each of the samples.
Chasing the Ghosts of Forty-Niners
Plodding in the footsteps of the forty-niners across the sun-baked Nevada desert, I feel the ghost of a man named Israel Lord tap me on the shoulder.
Ask the Experts
Q: ...where would you recommend selling class rings and other scrap gold?
Company Notes
• Crown Resources Corp.
• X-Cal Resources Ltd.
• Altair International
• Royal Gold, Inc.
Has Senator Harry Reid Worn Out His Welcome?
Senator Majority Leader Harry Reid, once a staunch supporter of mining and a voice of reason when dealing with public lands issues, seems to have changed his tune.
Subscription Required:
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
