The Heavy Minerals in Your Concentrates
June 2016 by Chris RalphThe fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.
So why would a modern-day prospector want to learn about a method of mining that was banned by the courts more than a century ago?
On our fourth trip, we finally reached the top edge of the old hydraulic pit, and it was monstrous.
While recovery rates are important, they must necessarily be secondary to the volume of material processed. Running more material at lower recovery rates is generally preferable to increasing the efficiency of the system.
The call of gold is a strong one and it has pulled men from every corner of the planet. That said, I guess it’s now my turn to chase far away gold.
There are currently three controlling agencies or entities over suction dredging in California—and you can make that four if the state legislature decides to further muddy the waters with additional legislation to block suction gold dredging in the state.
The big moment finally arrived. With Norm suited up, I pulled the motor to life and felt instantly better. There’s really something relaxing about the sound of a dredge running—they don’t sound like anything else.
It took me awhile before I finally got a nice mellow signal. My nugget turned out to weigh in about two dwt (pennyweight). Over the next few hours, we all picked up a few more nuggets apiece.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts • MMAC & PLP Update • Pocket Gold • Critical Metals: Antimony • Care and Lubrication of a Model 13 Laboratory Wilfley Table • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices