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kyanite

(kī′ə nīt′)

noun

a bluish silicate of aluminum, AlSiO, that forms in long, thin, bladed crystals that are found in metamorphic rocks

See kyanite in American Heritage Dictionary 4

noun

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

Origin:

Origin: Greek kuanos, dark blue enamel

Origin: + -ite¹

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