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...
Digital Tools—The PC and GPS
March 1999
More and more miners and prospectors are using personal computers and Global Positioning System Satellite receivers to satisfy the needs of vocations or hobbies.
More and more miners and prospectors are using personal computers and Global Positioning System Satellite receivers to satisfy the needs of vocations or hobbies.
Early Winter Detecting in the Sierras
January 2017
The mine site consists of river gravels from an ancient channel covering over 20 acres, and the place is covered with very large river rock and small tree overgrowth.
The mine site consists of river gravels from an ancient channel covering over 20 acres, and the place is covered with very large river rock and small tree overgrowth.
Gemstones in Wyoming—Part I
December 2005
Gemstones are timeless treasures of beauty. The extraordinary and satiated colors of many gemstones enhance their aesthetic beauty. Gems have been sought for personal adornment since the beginning of time and such minerals...
Gemstones are timeless treasures of beauty. The extraordinary and satiated colors of many gemstones enhance their aesthetic beauty. Gems have been sought for personal adornment since the beginning of time and such minerals...
Mud Men: Pocket Miners of Southwest Oregon—Part I
February 2011
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
Rocks and minerals associated with clay seam gold deposits in southern Oregon are often in sedimentary rock units at least partially metamorphosed into argillite. They are also associated with mafic volcanic rocks, basalts and gabbro that...
WWII Vet & Prospector Still Going Strong
July 2011
Lately I’ve been having success utilizing two types of detectors in succession. The first is a pulse induction (PI) detector with a blanket-style antennae, and I follow it up with a very low frequency (VLF) detector.
Lately I’ve been having success utilizing two types of detectors in succession. The first is a pulse induction (PI) detector with a blanket-style antennae, and I follow it up with a very low frequency (VLF) detector.
Melman on Gold & Silver
July 2012
On a personal level, I have been part of the business, brokerage and financial columnist worlds for 45 years, since the mid-1960s, and in all those years, I have never seen a collection of negative news items similar to what has been published during the past month. In short, taken together they may very well be describing the end of the economic world systems as we know them.
On a personal level, I have been part of the business, brokerage and financial columnist worlds for 45 years, since the mid-1960s, and in all those years, I have never seen a collection of negative news items similar to what has been published during the past month. In short, taken together they may very well be describing the end of the economic world systems as we know them.
The Basics of Froth Flotation
June 2015
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
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