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...
The Jenkins Mine Project Pt III -- Site Selection
October 2010
This sampling program was painfully tedious, and I’ve still got the calluses and embedded shovel splinters to prove it. But completing that testing program validated certain areas of the creek and eliminated others.
This sampling program was painfully tedious, and I’ve still got the calluses and embedded shovel splinters to prove it. But completing that testing program validated certain areas of the creek and eliminated others.
A Search for Tantalum
July 2005
It is likely that few tourists passing through the crowning glory of the Canadian Rocky Mountains in northeastern British Columbia would be aware that this spectacular region is the focal point of the search for one of earth’s most intriguing metals—tantalum.
It is likely that few tourists passing through the crowning glory of the Canadian Rocky Mountains in northeastern British Columbia would be aware that this spectacular region is the focal point of the search for one of earth’s most intriguing metals—tantalum.
McCain Derides Clinton Forest Policy
February 2000
Sen. John McCain stated recently that if elected president, he would overturn President Clinton's executive order putting more national forest land off-limits to logging.
Sen. John McCain stated recently that if elected president, he would overturn President Clinton's executive order putting more national forest land off-limits to logging.
East Coast Dredger Heads West - Part I
January 2009
Prospectors east of the Mississippi have their share of gold bearing property to explore and prospect upon. There’s plenty of undiscovered gold on the bottoms of the creeks and rivers running through the eastern gold belt.
Prospectors east of the Mississippi have their share of gold bearing property to explore and prospect upon. There’s plenty of undiscovered gold on the bottoms of the creeks and rivers running through the eastern gold belt.
Jury: Gov't Rightfully Seized 1933 Gold Coins
August 2011
The verdict capped an unusual civil case that combined history, coin collecting and whether the $20 “double eagles” ever legally left the US Mint.
The verdict capped an unusual civil case that combined history, coin collecting and whether the $20 “double eagles” ever legally left the US Mint.
Looking Back
January 2006
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.
Bill Could Create New Silver Market
July 2002
Legislation before Congress would enable the federal government to become a net silver buyer for the first time in four decades.
Legislation before Congress would enable the federal government to become a net silver buyer for the first time in four decades.
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• 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
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