#Cu__copper__atomic_number_29  a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
  supertype:  #metallic_element  #conductor.material
  substance of:  #bornite  #chalcocite  #chalcopyrite  #cuprite  #malachite  #brass  #bronze
  subtype:  #blister_copper__blistercopper  an impure form of copper having a black blistered surface

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