A rock containing enough metal to be profitable is called ore.

There is also concern that some products might contain radioactive metals.

Slurry contains heavy metals, but state officials have said the area's water is fine.

They are found only in the southern part of the island where the soil contains heavy metals, such as iron.

So although the new machine contains less metal than its predecessor, if offers a high standard of construction.

Beth said modern computers contained very little metal because they were so advanced.

Many pipes contain metal that can leach into the water.

The object he had seen must contain metal, and the Captain was bringing it in for fuel.

Because they contain relatively little metal, pole-arms are cheap to make.

Coin equal to or above 5 cents contain precious metal.