rutile

Noun
  1. A mineral consisting of titanium dioxide in crystalline form;
    Occurs in metamorphic and plutonic rocks and is a major source of titanium (synset 115032966)
    is a type of: mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
    substance holonym: atomic number 22, ti, titanium - a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite

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