Norway wants to open its Arctic seabed to mining for critical metals. Critics fear harm to fragile marine ecosystems. The WWF ...

Copper sulfide ores with medium pyrite content contain up to 50% sulfides, the average sulfide content is about 15% Fe 2 S. Some of these ores may underline porphyry copper deposits known as a ...

From the column: "A mine here would be a step in the completely wrong direction for our nation. It would be anti-climate.

Following President-elect Donald Trump’s inauguration, the Trump administration could roll back on environmental regulations, ...

Ceibo, a clean copper extraction technology company, and Glencore‘s (GB:GLEN) Lomas Bayas Mining Company have entered into a ...

Glencore’s Lomas Bayas mine agreed to begin on-site testing at scale of a leaching process developed by Ceibo.

these ores are grouped together with copper-lead-zinc ores. There are several geological formations of massive sulfide copper-zinc deposits. These include: Ores related to volcanic formation Ores ...

The permits could have allowed Antofagasta’s Twin Metals Minnesota to significantly expand its proposed sulfide-ore copper mine at the edge of the Boundary Waters Canoe Area Wilderness in northeastern ...