Zoisite
Pronunciation : Zois"ite
Part of Speech : n.
Etymology : [After its discoverer, Von Zois, an Austrian mineralogist.] (Min.)
Definition : Defn: A grayish or whitish mineral occurring in orthorhombic, prismatic crystals, also in columnar masses. It is a silicate of alumina and lime, and is allied to epidote.
Source : Webster's Unabridged Dictionary, 1913