Freeport-McMoRan, Rio Tinto and BHP are among the miners testing sulfide leaching as tariff threats send copper prices soaring.

4. What are the types of copper ore? There are two distinct types of copper deposits: sulfide ore and oxide ore. Currently, the most common source of copper ore is the sulfide ore mineral ...

Minn., has introduced a bill to ban copper-nickel mining on nearly a quarter-million acres of federal land in the same ...

A Canadian mining company has been cleared to begin exploratory drilling for copper and gold in northern Wisconsin.

On Wednesday, DFL Sen. Tina Smith introduced the "Boundary Waters Wilderness Protection Act." It marks the first time in 50 ...

Ore plus soap equals metal bubbles. Froth flotation of copper sulfide is similar to the process for extracting zinc sulfide. Source: Geomartin, CC BY-SA 4.0 Silver Valley galena typically assays ...

There have been no active sulfide mines in Wisconsin for decades. But a mining moratorium was repealed by Governor Scott ...

This legislation builds on years of advocacy by U.S. Rep. Betty McCollum, also a Minnesota Democrat, who has championed the ...

Smith emphasizes that her legislation would not ban or restrict existing or potential mining projects outside the Rainy River watershed.

The future of copper mining lies in urban mining. AI-driven scrap sorting leads the way. Cities become key material sources. Efficient recycling networks emerge. Waste shrinks. Recovery rates climb.

Comika Mining is characterized by a variety of complex copper ore types, including oxidized ores, sulfide ores, and low-grade waste rock stockpiles. These variations typically require different ...

A Canadian mining company has been cleared to begin exploratory drilling for copper and gold in northern Wisconsin.