Sentence Examples


  • Natural sulphate occurs in an anhydrous condition as thenardite, Na2SO 4, at Tarapaca, Chile, and in the rock-salt deposits at Espartinas near Aranjuez, Spain.
  • As the mineral thenardite or mirabilite, which crystallizes in the rhombic system, it occurs in many parts of the world, as in Spain, the western states of North America and the Russian Caucasus; in the last-named region, about 25 m.
 
 

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