A company that wants to extract gold from piles of decades-old mining waste outside Leadville no longer plans to use cyanide in its processes after hearing concerns from locals about the toxic ...

Toxic sodium cyanide has been used in gold mining since 1887, and it remains the primary reagent in use for gold processing ...

The Barrick Gold Canadian multinational company admitted that at least 224,000 liters of a “cyanide solution” have been spilled and said it was waiting on laboratory results over the substance.

Household chemicals could change gold extraction, especially where cyanide is banned, Dundee Sustainable Technologies (CSE: DST) CEO Jean-Phillipe Mai said. Dundee’s Chlorination Leach […] ...

MCCALL, Idaho— Local and national conservation groups sued the U.S. Forest Service today to challenge its approval of the Stibnite Gold Project, an open-pit cyanide leach gold mine in Idaho’s Salmon ...

ESGold Corp. (CSE: ESAU) (OTCQB: SEKZF) (FSE: Z7D) ("ESGold" or the "Company") is pleased to report the results of metallurgical test work, conducted in collaboration with Dundee Sustainable ...