#cobalt__Co__atomic_number_27  a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
  supertype:  #metallic_element__metal  any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
  substance of:  #cobaltite  #smaltite
  subtype:  #cobalt_60  a radioactive isotope of cobalt with mass number 60; a source of exceptionally intense gamma rays; used in radiation therapy

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