We have no rare ores or biologicals that are in demand- or at least none that are mentioned in the marketplace.

The deepest known traveler is diamond, whose rare volcanic ores are thought to ascend from depths of perhaps 150 miles or more.

"But excellent for mining rare ores," she said.

Our sophisticated gold ornaments for their rare ores.

At least three Hortas were ransacking the mineral assay office, knocking over the shelves and consuming the rare ores and gems.

There is also a black market offering unauthorised information regarding individual spies and colony supervisors, and illicit trade in rare ores and missiles.

The EU is also an attractive cooperative partner because we are obvious customers for the commodities provided by the Arctic - not just oil and gas, but also rare ores, for example.

His clerics explore the depths beneath the Oerth, work metals, and search for rare or magical ores.

Taking the wealth, though, meant selling the asteroid, selling not only a billion dollars' worth of rare ores, but selling the alien too.

The discovery of rare and valuable ores made Tats-Tor an important trading centre for the ships of the Imperium.