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...
Mining is Booming in Northern Ontario
June 2006
One of the results of the dynamic metals prices in recent years has been an enormous increase in mining activity throughout the industry and few places have been impacted as greatly as Northern Ontario, Canada.
One of the results of the dynamic metals prices in recent years has been an enormous increase in mining activity throughout the industry and few places have been impacted as greatly as Northern Ontario, Canada.
A Warning About Mercury
February 2009
I was working on an article to submit to you and had been for a couple of months. It won’t be the first. I had something occur that made me put off the article—safety! My article was concerning mineral processing at home.
I was working on an article to submit to you and had been for a couple of months. It won’t be the first. I had something occur that made me put off the article—safety! My article was concerning mineral processing at home.
The Bawl Mill
March 2013
• Getting scolded during recess happens to adults, too.
• On-the-job training
• Batteries not included
• By the numbers
• Getting scolded during recess happens to adults, too.
• On-the-job training
• Batteries not included
• By the numbers
Looking Back
August 2007
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.
Conducting Research To Find New Gold Deposits
March 2008
...this time of year the days are short, the temperatures cold and the weather reliably poor. That’s why the middle of winter is the best time for me to be doing research to find new gold deposits and places to explore after the weather warms and...
...this time of year the days are short, the temperatures cold and the weather reliably poor. That’s why the middle of winter is the best time for me to be doing research to find new gold deposits and places to explore after the weather warms and...
Map Offers Look at Butte's Mining History
July 2004
It turns out the old Anaconda Co. really did have 10,000 miles of tunnels beneath this mining city. That’s one of the findings by researchers who have produced a new map that charts the thousands of underground mine shafts here, providing a detailed look at some of Butte’s mining history.
It turns out the old Anaconda Co. really did have 10,000 miles of tunnels beneath this mining city. That’s one of the findings by researchers who have produced a new map that charts the thousands of underground mine shafts here, providing a detailed look at some of Butte’s mining history.
Mining Stock Quotes and Mineral & Metal Prices
December 2018
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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
