Dictionary entry

Euclase

Webster's Dictionary 1913

Eu″clase (?) n. [Gr. � well, easily + � to break. Cf. F. euclase, G. euklas. See named from its brittleness.] (Min.) A brittle gem occurring in light green, transparent crystals, affording a brilliant clinodiagonal cleavage. It is a silicate of alumina and glucina.