Large Scale Mining
Critical Metals: Zinc
May 2014 by Chris Ralph
In this article, part of an ongoing series taking a look at critical metals in our economy, we will examine the mining and use of the metal zinc.
Prospecting for Copper Ores—Part II
Copper is a critically important metal that we need to run our modern electronic society, and the long term outlook for this metal is for a steady increase in price.
Appeals Court OKs Permits for Upper Peninsula Mine
The $800 million project will provide 300 jobs during production. It will be the only US mine where nickel is the primary targeted mineral, with about 360 million pounds to be extracted.
Gold Ores of the Delamar District, Nevada
Even as late as 1906, Delamar was second only to Tonopah and Goldfield in production outshining many better known areas. Since the first discoveries, more than 700,000 ounces of gold have been produced from the mines here.
EPA Reopens Comments on Pebble Project
The settlement did not grant an immediate approval for the project, but it did begin to clear the way for the company to apply for federal permits—a path the Obama administration previously had thwarted.
Gold and Silver Deposit May Be World's Largest
A crater in an undersea volcano off Japan may contain the world's largest gold nugget ever found...
Preserving the True History of the Ivanhoe
My partner had the contacts and it wasn’t long before we had an agreement in place and the company had a geologist on site. I recall a time when he was getting the lay of the land, so to speak, and he broke off a rock sample and inspected it with his magnifier.
The Basics of Crushing and Milling Operations
In processing gold, silver and other valuable ores, the minerals containing the values, such as metallic gold, silver-bearing sulfides or other minerals, must be freed from the surrounding host rock before those valuable minerals can be captured.
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