Sentence Examples

  • The ore is also worked for gold.
  • The value of the ore reduced annually is about $10,000,000.
  • The most extensive fields are in the Mittagong, Wallerawang and Rylstone districts, which are roughly estimated to contain in the aggregate 12,944,000 tons of ore, containing 5,853,000 tons of metallic iron.
  • Others, such as Paros, are mainly composed of marble, and iron ore occurs in some.
  • It is thus a common mineral in all copper mines, and sometimes occurs in large masses, as in Arizona and in South Australia, where it has been worked as an ore of copper, of which element it contains 55%.