Hard Rock Milling: A Matter of Scale
April 2013 by Chris RalphMost prospectors understand placer mining a lot better than hard rock mining and don’t realize the amount of work that goes into processing different types of hard rock ore.
When I was recently in West Africa, I got to see and play with my first, phony, Chinese knock-off metal detector.
...even the best prospectors have times when they do not find gold. It is all about taking chances against tough odds and succeeding.
As I started walking down to the river one chilly morning, the mist was hanging over the calm portions of the water like a white cotton blanket. This scene got me to thinking about why the river was like that—the deep pools, boulder fields, gravel bars, the effects of how much water was moving at any given time along the watercourse—and most of all the relationship all these things have on where I will be able to find gold.
The 2011 gold season had finally got underway on the Middle Fork of the Feather River near Quincy, California. Cold weather and high water had pushed gold mining into mid-summer, but things were looking up.
Trinity County is located in the far northwest corner of California and stirs up many different memories for those who have been there.
When it was all setup and running, you had everything coming off the dredge riffles into the boil box. At the hole section, some of the water got sucked down and pulled a lot of black sand and over heavies…
...day one was like watching the Gold Rush television show. He furiously worked the nozzle in an up and down fashion that resembled Jack Hoffman sitting on a backhoe.
The Bawl Mill • Ask the Experts - processing plants that can extract rare earth metals • Ask the Experts - what does MDB&M stand for? • Ask the Experts - proper mining claim procedures • The Hughes Creek Placers, Montana • Benefits of a Detecting Partner • Excavator Testing Wet Placer Ground • Paperwork Guy—A Cautionary Tale • ICMJ Online Forum Now Available • Detecting For Gold—Are You Up For It? • A Trip Down the Yukon River • Selenium, Mercury and Suction Dredging—Studies Contradict CA State Water Resources Board • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices