euclase Meaning, Definition & Usage

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

Webster 1913