Small Mining Operations
The Fire Assay of Carbon
February 2016 by Hank Chapman, Jr.
Carbon, activated charcoal, or “char,” as some old timers refer to it, can be an assayer’s nightmare.
Ask the Experts
NOI or POO for small backhoe
Heavy Glacial Rocks and Gold in the Midwest
Over the years, I've noticed a pattern in the type of rocks associated with the best gold deposits in Midwestern glacial gravel.
Papa's Got A Brand New Dredge!
It was time to prime the pump and start the engine! Dan’s priming method is to use a small, submersible, 12-volt pump. My priming method is to use a hand-operated diaphragm pump.
PLP and MMAC Update
Early Summer Mining in Wyoming
Old tailing piles extend for miles. There was still plenty of water flowing here, so WPA members set up highbankers at several settling ponds.
Reality of the Klondike
I saw gold this summer. The kind of gold that I haven’t seen since ‘81. The kind of gold that rattles in the pan. The kind of gold that would start a stampede—even in 1898.
A New Method for Handling Stubborn Gravity Middlings
The solution focused on the relative difference in malleability between gold and waste, rather than the difference in density exploited by gravity circuits.
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