November 2000 by Charles L. ButlerMost ore bodies generate a voltage, giving the prospector another valuable method of tracing and locating these hidden minerals. With the Oretron, one can sense and measure these voltages along the ground surface...
The platinum group metals (PGMs) are divided into three that are “light,” about the same atomic weight as silver, and three that are “heavy,” about the same atomic weight as gold. The three light PGMs are ruthenium, rhodium, and palladium, and the three heavy PGMs are osmium, iridium, and platinum.
From time to time I’ve been doing a series on critical metals and how important they are to our complex and technological society. This month we are going to take a look at copper, and how important that metal is to our modern lives.
The pit was a classic one—exposed shale bedrock with all the material being washed out one end of the pit. Within a few minutes I had a nice mellow signal that was in open ground.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
I wasn’t so hot in science class as a kid, and I’m regretting spending most of that time in class catching up on sleep or daydreaming about being a big league ball player. Never in a million years would I have guessed that science...
The price of gold has certainly raised some eyebrows and has prompted some new prospectors onto the scene. They are faced with the same problem that we old timers have—where to find the gold.
The Bawl Mill • Our Readers Say • Enrichment of Gold Veins • The Assay of High Iron Gold Ores • The Patch • History of Mining—Bradshaw Mountains, AZ (Part I) • Picks & Pans—The Green Rock, Rattlesnakes, Good Gold and Ruth's Mine • Silver Hill, North Carolina • Residual, Lateritic and Gossan "Soils" as Potential Nuggetshooting Sites • Hardrock in Downieville • Looking Back • Company Notes • Gold in Northern Baja California • California State Gold Panning Championship Results • Melman on Gold & Silver • V.P. Contender Addresses Mining Show