STAUROLITE

STAUROLITE, STAUROTIDE, noun [Gr., a cross, a stone.] The granatit of Werner or grenatite of Jameson; a mineral crystalized in prisms, either single or intersecting each other at right angles. Its color is white or gray, reddish or brown. It is often opake, sometimes translucent. Its form and infusibility distinguish it from the garnet. It is called by the French, harmotome.