cyanite

Noun

cy=a=nite

WORDNET DICTIONARY

cyanite(n = noun.substance) kyanite - a grey or greenish-blue mineral consisting of aluminum silicate in crystalline form; occurs in metaphoric rock, used as a refractory;

is a kind of mineral

cyanite, n. [See Cyanic.].

A mineral occuring in thin-bladed crystals and crystalline aggregates, of a sky-blue color. It is a silicate of aluminium. [1913 Webster]