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Hillside Placers
July 2003 by Edgar B. Heylmun, PhD

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...

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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The Bawl Mill
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• Melman on Gold & Silver
• Looking Back