Extracting gold from ore is a poisonous business. The most common method is cyanide leaching, where cyanide salts in solution are used to suck the gold out from its ore. You get gold, but you also get ...

Getting your Trinity Audio player ready... LEADVILLE — Millions of tons of waste from decades-old mining operations sit in the hills east of town. The brown and orange piles of abandoned ore rise 30 ...

While cyanide in mining is nothing new, using heap leaching to process gold didn't come along until the 1970s, McCullough said, when the first such mine was opened in Nevada. The process opened up the ...

A gold mine using cyanide in its extraction process has been poisoning thousands of people in the province of Usak since last year. A court has decreed that the mine be closed. A department of the ...

An environmental group has voiced concerns over a planned gold mine in Eskişehir, central Turkey due to its possible environmental impact. The Environmental Impact Assessment (EIA) report has been ...