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Gold at Ragged Top, Arizona
April 1999 by Edgar B. Heylmun, PhD
Ragged Top is a jagged mountain which rises to an elevation of 3,907 feet near the Silver Bell open-pit copper mine, some 34 airline miles northwest of downtown Tucson. It is an outlier of the Silver Bell Mountains...Gold, Quartz & Chalcedony—Part II
The specific gravity of chalcedony is 2.58 to 2.64. This is slightly lower than coarsely crystalline quartz because of slight porosity in chalcedony. Being so light, it will easily wash out of a gold pan.
Companion Gold
Easing around the bedrock ledges and rock hopping, Terry and I came out into the open and were looking at a nice run of bedrock.
Melman on Gold & Silver
Most American markets greeted the first few trading days of the new year with substantial selling. Compared to their 2004 year-end levels, by January 11, the Dow Jones Industrial Average had declined almost 300 points, the NASDAQ Composite had fallen from 2,185 to near 2,080 while the S&P 500 had dropped from 1,217 to 1,183.
Our Readers Say
“...I appreciate the details on the economics of the operation.”
National Mining Hall of Fame to Induct Five
Paul A. Bailly, Richard T. Moolick, William Braden, Alonzo Pawling and Henry Harnischfeger will be inducted into the National Mining Hall of Fame for their contributions to mining.
Alaskan Gold Adventure
In Chicken I had my first experience with the famous Alaska blue clay, sometimes called the blue layer. The blue layer is where the best fine gold was to be found.
Mom Finds 3.72-Carat Yellow Diamond
“Much of the ground where Ms. Hollingshead found her diamond is made of unweathered volcanic rock. When it rains, flowing runoff often leaves loose gravel, and sometimes diamonds, on the surface in these areas.”
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The Bawl Mill
• Editorial—BLM 43 CFR 3809 Revision Status
• Our Readers Say
• Miner Says Mining Could Return to Boulder
• Arizona Mines and Minerals Releases New Directory
• Onerous New Mining Rules Adopted in Washington State
• U.S. Sued for Failure to Guard Rare Species
• Miner Charged in Death of Downieville Miner
• Senator Warns Against Proposal to Sell Some IMF Gold
• Dry Placers in the Kamma Mountains, Nevada
• Company Notes
• MCS Index Shows Decrease in Mining Costs
• Over the Divide
• Picks & Pans: Confessions of a Small Miner—Part II
• The Saga of Sand Mountain
• Nevada County Feeling Pain of Slumping Mining Industry
• There's Gold in Those Tailings
• Increase in Silver Demand by Photography Industry
• Melman on Gold & Silver
• Looking Back
• Mining Stock Quotes and Mineral & Metal Prices
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