Sentence Examples


  • Iron ores have been found in most of the states, and are especially abundant in Minas Geraes.
  • The manganese ores of the Bathurst district of New South Wales often contain a small percentage of cobalt - sufficient, indeed, to warrant further attempts to work them.
  • The problem of the profitable treatment of the sulphide ores has been practically solved here.
  • Stromeyer detected a new metallic element, cadmium, in certain zinc ores; it was rediscovered at subsequent dates by other observers and its chemical resemblance to zinc noticed.
  • Sefstrom definitely proved the existence of a metallic element vanadium, which had been previously detected (in 1801) in certain lead ores by A.
 

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