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Hillside Placers
July 2003 by Edgar B. Heylmun, PhD
Hills and mountains that contain gold deposits will weather and erode over a long period of time, and the eroded material will move slowly downhill. Frost wedging and roots are two of several agents that can cause bedrock to be fractured and...
Using A Blasting Machine in Rock Breaking
Whatever system you plan to use will require a way to safely initiate the explosives from a distance. In this article, we’re going to learn the basics of electric blasting and get a hands-on example…
One Potato, Two Potato...
Normally the detector he was using would sound off with a definitive high-to-low tone when passed over a piece of gold, which distinguished the gold from the many high iron content "hot rocks," but this one was different...
Advancements in Non-Toxic Gold and Silver Leaching
The non-toxic thiosulfate is actually the medical antidote given to people for cyanide poisoning. By accomplishing both neutralization and metals recovery, this process creates an economic and environmentally attractive process.
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Woman Gets 90 Months in Mining Fraud Case
A Nevada woman was sentenced to more than seven years in federal prison for her role in an investment scheme involving claims that she could extract precious metals from volcanic cinders, officials said.
Ash Fork Calm After Explosives Theft
The tiny, unincorporated town of Ash Fork blazed into the national spotlight with the announcement that 1,000 pounds of explosives were stolen from a nearby mine.
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