All Articles
The Basics of Small-Scale Heap Leaching with Cyanide
August 2007 by Chris Ralph
In last month’s article I talked a bit about opportunities for heap leaching small hardrock deposits. This month I’m going to talk about the basics of putting together a heap leach project, including building the pad and leaching the ore.
Additional articles that might interest you...
Melman on Gold & Silver
December 2006
Few non-Presidential elections have been as eagerly anticipated as the one just completed in early November and, if change was what you wanted, massive change is what you received.
Few non-Presidential elections have been as eagerly anticipated as the one just completed in early November and, if change was what you wanted, massive change is what you received.
The Heavy Minerals in Your Concentrates
June 2016
The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.
The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.
The Final Gold Strike of the Alaska Gold Rush—Livengood Stampede, 1914
December 2001
The Livengood (pronounced with a long “i” as in alive) gold stampede was the last of the great Alaska Gold Rush. The string of gold rushes began in 1886 with the Fortymile gold strike, and ten years later with the large Yukon Klondike goldfields discovery.
The Livengood (pronounced with a long “i” as in alive) gold stampede was the last of the great Alaska Gold Rush. The string of gold rushes began in 1886 with the Fortymile gold strike, and ten years later with the large Yukon Klondike goldfields discovery.
Correction
June 2014
In our May 2014 issue, we incorrectly identified the woman who recovered numerous small nuggets...
In our May 2014 issue, we incorrectly identified the woman who recovered numerous small nuggets...
Gold in Vermont
August 2005
The principal gold belt in Vermont extends south from the Canadian border along the east side of the Green Mountains, as far south as the Massachusetts line. The entire region was glaciated during the Great Ice Age and the glaciers contained streaks of finely-divided gold, so some of the gold found in Vermont originated in what is now Canada.
The principal gold belt in Vermont extends south from the Canadian border along the east side of the Green Mountains, as far south as the Massachusetts line. The entire region was glaciated during the Great Ice Age and the glaciers contained streaks of finely-divided gold, so some of the gold found in Vermont originated in what is now Canada.
Crandon Mine Decision Still Years Away, Says State
June 2001
Nicolet Minerals expected to be mining zinc and copper from an underground quarry in Wisconsin by now. Instead, a state review of the project is only 75 percent completed after seven years, a top state regulator said.
Nicolet Minerals expected to be mining zinc and copper from an underground quarry in Wisconsin by now. Instead, a state review of the project is only 75 percent completed after seven years, a top state regulator said.
A Guide to Overlooked Gold Deposits—Part IV
December 2003
Trends are geologic situations in which the geological structure of an area is conducive to the deposition of minerals. These structures are generally fault systems that can be small and localized or can run for miles.
Trends are geologic situations in which the geological structure of an area is conducive to the deposition of minerals. These structures are generally fault systems that can be small and localized or can run for miles.
Subscription Required:
The Bawl Mill
• Ask the Experts
• Will California Dredging Survive?
• Prospecting For Gold—The Osborne/Herman Hardrock Mine
• Journeys in the Kingman Quadrangle
• From Spanish Mine to Modern-Day Exploration: The Historic Gold-Silver Camp of Palmarejo
• Spanish Police Seize Ship in Treasure Fight
• Looking Back
• Gold Mine Proposed in Jefferson County
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
