Prospecting for Copper Ores—Part I
June 2012 by Chris RalphCopper is one of the metals that form the backbone of our modern civilization. Copper is an essential part of every computer, cell phone, automobile and household appliance.
In the simplest sense, drills can be divided by their mode of action—percussion, rotary or a mixture of the two.
According to some experts, after the peak is reached, the production rate will slowly decline until it reaches near zero while the price shoots upward. At that point, we will have pretty much mined all the economic ore deposits that are present on the planet.
Exploration companies are actively looking for properties with profitable potential, even if the ground was once cast off as too low in grade to be economically viable. This is especially true in states that are reasonably friendly toward...
Gary J. Goldberg became President and CEO of Newmont Mining Corp. in 2013. He turned the company’s overall performance around through a disciplined focus on safety, technical fundamentals, and value over volume.
During our visit during late May, 2011, the vertical nature of the mineralized areas was clearly visible, as were numerous examples of quartz-carbonate veins in shear zones, faults and folds.
A few months later, a young, greenhorn lawyer agreed to pay to have it assayed, and the quartz turned out to be rich in both gold and silver.
Heclas’s underground Lucky Friday Mine in Idaho is scheduled to reopen following a series of accidents, which included the death of two miners.
The Bawl Mill • Our Readers Say • Iowa Hill District • Gold Deposition and Gradients of Placer Streams—Part I • Pursuing Rare Earths in Wyoming • The Mole • Repair / Replace Tax Rule Changes • The Wisdom of Mark Twain—And Tales of Cheating the Unwary Prospector • Colorado Mining Association Appeals Roadless Ruling • Ganes Creek Hits 10 Years—Part II • Fifteen and Counting • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices