All Articles
The Furnace Atmosphere During the Fire Assay
January 2001 by Dr. Ralph E. Pray
It has been claimed that the introduction of excess air to the assay furnace during sample fusion can materially increase the gold yield. Testimony by expert witnesses for the defense in recent federal hearings dealing with the dependability of the gold fire assay includes data purported to show this.Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Pros and Cons of Big Detector Coils
Years later I returned with a new detector with a smaller coil and detector technology more sensitive to smaller nuggets. I found my first nugget within five minutes. I had a second five minutes after that.
Legislative and Regulatory Update
• Forest Service Roadless Initiave comment period is about to close
• Endangered Species Decision Delayed
• 43 CFR Part 3800—Mining Claims Under the General Mining Laws
EPA Chief to Reconsider Paying Claims Over Mine Waste Spill
“We feel that we can clean up an area that has been abandoned after 100 years of mining,” Lyon said.
Gold Near Boulder, Colorado
Several mining districts near Boulder, Colorado mark the northeast end of the 240-mile-Iong Colorado Mineral Belt, which cuts diagonally across the Rocky Mountains.
The Federal Land Survey System
When the thirteen original colonies were laid out in what is now part of the United States, they used the English system of metes and bounds.
Managers at Fault for Two Deaths at Meikle Mine
Two miners were killed in an accident partly because someone wedged a broom handle against a reset button to bypass an alarm that would have shut down the system, federal safety investigators said.
Subscription Required:
The Bawl Mill
• Over the Divide
• Our Readers Say
• Special Editorial: Gold Anti-Trust Action Committee Believes They Have the Evidence
• World Gold Council News
• Metal Detecting Within the Cordillera for Gold Placers Associated With Tertiary Epithermal Ore Deposits
• Picks & Pans: An Exciting Hobby
• Prospecting for Silver With a Geiger Counter
• The Hanging Tree
• Gold in Chihuahua, Mexico
• ICMJ 10th Annual Photo Contest Results
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
