Continuing Hard Rock Exploration
April 2014 by Don RobinsonWe had been picking away at it, but the going was mightly slow. Why not use some explosives to advance a little quicker?
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…
Confluences of placer streams are well known as concentration sites for heavy minerals. The basic reason is that...
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
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 first location we worked was a small, dry ravine cutting through many mineralized zones in an area where some hard rock mining had taken place in the past.
I was amazed and surprised, and I took a moment to admire how beautiful this coarse chunk of gold was. It later weighed exactly one-half ounce.
I probably swung over a few targets without noticing them. My first target came about ten minutes later as I went over a part of the high bench in this wide section of the dry wash.
The Bawl Mill • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Mining for Gold and Sapphires in Montana • Contrary to Rumors, Couple Will Keep the Saddle Ridge Hoard • Finding Gold with a VLF Detector—Part I • Creating Your Own Luck • Over the Divide—Robert Michael “Mike” Corbley • Recovering Fine Gold with Oleophilic Adhesion • Detecting for Gold in Nevada • Using Structural Clues to Locate Buried Placer Channels • Gold Deposits of the Ivory Coast • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices