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Noun: kyanite  'kI-u,nIt
  1. A grey or greenish-blue mineral consisting of aluminium silicate in crystalline form; occurs in metamorphic rock, used as a refractory
    "Kyanite's high heat resistance makes it valuable in the production of ceramics";
    - cyanite

Derived forms: kyanites

Type of: mineral

Encyclopedia: Kyanite