At a laboratory in Newark, New Jersey, a gray liquid swirls vigorously inside a reactor the size of a small watermelon. Here, ...

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 ...

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

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

Glencore (OTCPK:GLCNF) (OTCPK:GLNCY) is moving ahead with a new extraction technology at its Lomas Bayas copper mine in ...

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 ...

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 ...