staurolite Meaning, Definition & Usage

Stau"ro*lite noun

Etymology

Gr. a cross + -lite.

Definitions

1. (Min.) A mineral of a brown to black color occurring in prismatic crystals, often twinned so as to form groups resembling a cross. It is a silicate of aluminia and iron, and is generally found imbedded in mica schist. Called also granatite, and grenatite.