ore

Definition

Mined material containing a metal in quantity sufficient to justify its mining on a commercial scale. This quantity varies for different metals: an iron ore must contain 20 to 30 percent by weight of iron, but a copper-ore need to have only 0.5 percent copper.


ore is...

Nearby Terms

Browse by Letter: # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z