Once the raw ore was removed from the mine, it would be crushed, then washed.

In all, Hazen and the institute conducted three tests involving six tons of raw ore.

It was a far smaller and thinner find, played out early, but it supplied enough raw ore to enable most subsequent exploration.

In 1904 the Austrian government took over the ownership of the mines and stopped exporting raw ore.

Even a crate or two of raw ore would be useful.

World production averages two billion metric tons of raw ore annually.

Tailings are the waste from the pulverizing of raw ore at the mines.

Inside, huge cargo containers of raw ore had been stacked nearly to the ceiling.

"The problems of raising raw ore from the sea bottom are emense."

A chunk of raw ore sat nearby, waiting to be forged if only Keleios could decide what it most wanted to be.