germanite

Noun
  1. A rare reddish-grey mineral consisting of a copper iron germanium sulfide (synset 114700769)
    is a type of: mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
    substance holonym: atomic number 32, ge, germanium - a brittle grey crystalline element that is a semiconducting metalloid (resembling silicon) used in transistors; occurs in germanite and argyrodite

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