kyanite
nounA bluish-green to colorless mineral, Al2SiO5, used as a refractory.
nounSee
See
a blue
a grey or greenish-blue mineral consisting of aluminum silicate in crystalline form; occurs in metaphoric rock, used as a refractory
A bluish-green to colorless mineral, Al2SiO5, used as a refractory.
nounSee
See
a blue
a grey or greenish-blue mineral consisting of aluminum silicate in crystalline form; occurs in metaphoric rock, used as a refractory
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