kyanite
[ kahy-uh-nahyt ]
/ ˈkaɪ əˌnaɪt /
noun
a mineral, aluminum silicate, Al2SiO5, occurring in blue or greenish bladed triclinic crystals, used as a refractory.
Also
cyanite.
Example sentences from the Web for kyanite
Kyanite and staurolite may also be mentioned as occasionally occurring.
In mica-gneisses sillimanite, kyanite, andalusite and garnet may occur.
British Dictionary definitions for kyanite
kyanite
cyanite
/ (ˈkaɪəˌnaɪt) /
noun
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 AL 2 SiO 5
Derived forms of kyanite
kyanitic (ˌkaɪəˈnɪtɪk), adjectiveScientific definitions for kyanite
kyanite
[ kī′ə-nīt′ ]
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.