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CYANIDE LEACHING
In the 1890s, a new gold process helped turn Mercur, Utah, into a boomtown of over 2,500; by 1913, the mine had closed, and the original townsite was abandoned, though mining later resumedIn the late 19th century, Mercur, Utah, became an influential mining hub fueled by new gold extraction methods, notably cyanide processing ...- A trillion-ton threat hangs over critical mineralsMining generates a trillion tons of waste, posing a major obstacle to securing critical minerals. This dross, including unstable tailings, ...
- Trapped in a gold dustbowl: Residents of Kolar Gold Fields hope revival of mining will lead to better daysWhile they wait, the mounds of mining waste that have come up in the area pose a health hazard, a concern that’s low on the priority list o...
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