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 ...

Even though the Colorado Supreme Court last week rejected Summit County’s ban on cyanide-based gold mining, no one is expecting a rush of mining applications any time soon. “I think the chances are ...

RZOLV Technologies is a clean-technology company focused on non-cyanide gold extraction chemistry rather than mineral ownership. Its work is centered on a structural issue emerging across the gold ...

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 ...

Two contradictory reports surrounding toxic mining pollution at MIDROC Gold’s Lege Dembi site have placed the controversial commercial-scale gold extraction ...

SUMMIT COUNTY – Representatives from Clean Water Action spent Thursday and Friday knocking on the doors of Summit County residents to discuss open-pit gold mining issues.But some local officials ...

Dear EarthTalk: Most gold mining operations use cyanide to extract gold from surrounding rock. What are the environmental implications of this, and are there alternatives? --J. Pelton, via e-mail ...

DENVER ” Invoking a 1992 pollution disaster, attorneys for Summit County told the state Supreme Court Tuesday that counties have the right to ban a cyanide-based gold mining technique if they believe ...

Vancouver, British Columbia--(Newsfile Corp. - January 5, 2026) - RZOLV Technologies Inc. (TSXV: RZL) (the "Company" or "RZOLV") today reported the results of a bulk-scale vat leach metallurgical test ...

Cairo: The Egyptian government has announced the establishment of the first sodium cyanide production plant in the Middle East in Alexandria Governorate on the Mediterranean coast, with an annual ...

More than 22 years after a deadly cyanide spill contaminated a remote mountain river of Kyrgyzstan, a Bishkek court has ruled in the case of more than two dozen residents of the northeastern village ...