All Articles
Gold Diver's Closes Its Doors
December 2004 by Scott Harn
After almost 50 years of service to the mining industry, Burl Cheely, owner of Gold Diver’s and the manufacturer of the Couple-Jet and Taper-Jet line of dredges, is retiring.National Hall of Fame Names 2017 Inductees
Where to Prospect for Gold in Colorado
Colorado is one of the more productive states when it comes to gold, ranking third, behind Nevada and California. The majority of the gold deposits are confined to a northeast-trending belt known as the Colorado Mineral Belt...
Turquoise Mining—Labor Intensive, But Worthwhile
For many years, the US had a historical tradition of small-scale mining. Individuals or small groups of miners would spend part of the year working the higher-grade sections of old mines and ship the high-grade ore to smelters or...
Melman on Gold & Silver
Putting it all together, we have indications that the petroleum price increases could continue and we believe that if that is the case, the impact on precious metals would be positive.
Throw-Away Gold: Back to Basics
Placer mining, whether for profit or recreational purposes, involves separation of free gold from the gold-bearing sands (gangue) of alluvial deposits by methods using specific gravity. The free gold can vary from 17 to 19.3 in specific gravity terms, depending on the alloy mix, which is usually silver, but can be copper, lead, sulfur, tellurium, antimony, or mercury.
Gold in Sonora
The state of Sonora, slightly smaller in area than Utah, lies in-northwestern Mexico, adjoining Arizona to the south. It is characterized, on the east, by a high volcanic plateau, the Sierra Madre Occidental, which forms its boundary with Chihuahua.
Looking Back
Excerpts from CMJ, our original title, published 50 years ago this month.
Subscription Required:
The Bawl Mill
• Geologist's Search for PGMs Leads to Mining Venture
• Diamonds in the Rough in Montana
• The Art of Finding Coarse Gold Part I—The Geology of Coarse Gold Formation
• Using Microbes for Mining
• The Carter and Reynolds Gold Mines: Is There a Yet Unknown, but Mineable Gold Deposit Here?
• Michigan House Committee Approves Sulfide Mining Regulations
• Surging Gold Prices Add Luster to Nevada's No. 2 Industry
• Ruby Hill Gold Mine to Reopen in Eureka
• The Skaergaard Intrusion
• Melman on Gold & Silver
• BLM Launches Mining Claim Records Viewer
• Newmont Welcomes Release of Executives
• The Baja Gold Rush of 1889
• Mining Stock Quotes and Mineral & Metal Prices
• Looking Back
