Professional Equipment for Serious Detectorists!

Magazine

All Articles

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...

Online access required. Please .

Add a Comment

Additional articles that might interest you...

A Few Reminders About Fraud


Some calls from subscribers and advertisers over the past few months have prompted us to remind both buyers and sellers to be wary of fraudulent activity in the prospecting and mining industry.

The Bawl Mill


• Pouring money down an artsy drain...
• Big government gets even bigger
• California leads the way...to financial ruin

Mining Stock Quotes and Mineral & Metal Prices


Metal Detecting Within the Cordillera for Gold Placers Associated With Tertiary Epithermal Ore Deposits


This is a follow-up article to “Epithermal Ore Deposits...” published in the December 2000 issue. Related tables and maps were included with the previous article. If you did not receive the December issue you can still view the previously published maps on our web site by clicking on “January 2001 Featured Article.”—Editor

Legislative and Regulatory Update


• Our Federal Landlord
• One down, two to go
• Challenging timing windows in Washington State
• More roadblocks to mining

PLP Update


Things became a bit challenging when the hot, dry weather was interrupted by 30mph winds with occasional gusts nearing 50 mph.

Northern Dynasty Chooses Partner for Pebble


The Canadian company that owns the Pebble Mine prospect has partnered with Anglo American to develop the Pebble project in Southwest Alaska.

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

Free:
Legislative and Regulatory Update

Advertisements

Precious Metals Recovery plants and equipment
Fighting to keep public lands open to the public
Specializing in the processing of precious metal ores!
Watch prospecting shows on your computer right now
Free Online Sample Issue