kyanite (redirected from kyanitic)

ky·a·nite  (k-nt) also cy·a·nite (s-)

n.

A bluish-green to colorless mineral, Al₂SiO₅, used as a refractory.

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[Greek kuanos, dark blue enamel + -ite.]

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kyanite [ˈkaɪəˌnaɪt]

n

(Earth Sciences / Minerals) a grey, green, or blue mineral consisting of aluminium silicate in triclinic crystalline form. It occurs in metamorphic rocks and is used as a refractory. Formula AL₂SiO₅

kyanitic  [ˌkaɪəˈnɪtɪk] adj

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kyanite  (k-nt)

A bluish-green to colorless triclinic mineral. Kyanite occurs as long, thin, blade-shaped crystals in metamorphic rocks. It is unique among minerals in having two grades of hardness, one along its length, and one along its width. It is a polymorph of andalusite and sillimanite, but can form at lower temperatures than either of these. Chemical formula: Al₂SiO₅.

Thesaurus

Noun

1.

kyanite - a grey or greenish-blue mineral consisting of aluminum silicate in crystalline form; occurs in metaphoric rock, used as a refractory cyanite mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition