copper glance

Noun
  1. A heavy grey mineral that is an ore of copper (synset 114694505)
    is a type of: mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
    substance holonym: atomic number 29, copper, cu - 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
    same as: chalcocite

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