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Webster 1913 Edition

(-n?t)

Noun.

[See

(Min.)

A mineral occuring in thin-bladed crystals and crystalline aggregates, of a sky-blue color. It is a silicate of aluminium.

[Written also

kyanite

Noun.

[Gr. Sky-colored.] A mineral of a berlin blue color, passing into gray and green; called by Hauy, disthene.

cyanite ‎(plural cyanites)