All Articles
Cedar Rim Opal—Discovery of a Giant Opal Field
October 2008 by W. Dan Hausel
In 2003, I initiated field reconnaissance of an opal deposit at Cedar Rim in central Wyoming and was amazed at the size of this undocumented deposit located right in the middle of an oil and gas field...
Additional articles that might interest you...
This is Why You Check Your Tailings
September 2014
The nugget was cast aside with larger rocks during the screening process, but it was found later by an employee...
The nugget was cast aside with larger rocks during the screening process, but it was found later by an employee...
Guest Editorial—Globalizing Mining in America, Part I
August 2000
Is it environmental concern that's driving mining out of the United States or rather politics on the grandest scale?
Is it environmental concern that's driving mining out of the United States or rather politics on the grandest scale?
Gold in Jasperoid
February 2000
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...
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...
Northwest Miners Rally a Success
November 2004
This year’s rally worked extremely well with over twenty exhibitors and four seminars on various aspects of mining running throughout, as well as active river demonstrations of equipment. The hands-on approach, allowing people to try the suction dredges and power sluices, recovered well-distributed fine gold.
This year’s rally worked extremely well with over twenty exhibitors and four seminars on various aspects of mining running throughout, as well as active river demonstrations of equipment. The hands-on approach, allowing people to try the suction dredges and power sluices, recovered well-distributed fine gold.
Legislative and Regulatory Update
November 2010
• PLP continues the fight for miners' rights
• Oregon miners fight back
• Bills address strategic minerals
• PLP continues the fight for miners' rights
• Oregon miners fight back
• Bills address strategic minerals
Looking Back
October 2002
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Placer Testing with Large Samples
June 2000
Of all the difficult gold placer sites to evaluate, none can compare with trying to dig to bedrock through twenty or thirty feet of soaked overburden through which water is slowly seeping downgrade.
Of all the difficult gold placer sites to evaluate, none can compare with trying to dig to bedrock through twenty or thirty feet of soaked overburden through which water is slowly seeping downgrade.
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The Bawl Mill
• Dredging at Real Del Castillo, Baja
• Finding Paystreak Gold With A Metal Detector
• General Metals Continues Toward Production
• "I Got Dusted"
• The Trail of ‘98
• Newmont Steps Up For Laid Off Workers
• Benton’s Rich Silver
• Gold Trader, Employee Charged with Wife’s Killing
• Is There A Gold Shortage?
• Wyoming Governor Pushes for Uranium Study Release
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• California State Open and US National Gold Panning Championships
