Yet, they are highly adherent to the underlying copper metal.

This by itself could change the growth of copper metal.

Nickel was found when a copper-colored ore did not make copper metal.

The target is to reach a capacity of 100,000 tonnes per year of copper metal.

The copper metal reacted with the gold to form a bond.

The oxidation reaction can be performed with or without the copper metal.

It can react with carbon monoxide or hydrogen to make copper metal.

For example, a recent study analyzed the varying levels of risk to the copper metals around the world.

Often the smelter sells the copper metal itself on behalf of the miner.

Basic reserves are estimated at 200,000 tonnes of copper metal and 1.8 million ounces silver.