The Probert Encyclopaedia of Rocks & Minerals

ZOISITE

Zoisite, named after its discoverer its discoverer, Von Zois, an Austrian mineralogist, is a greyish or whitish mineral allied to epidote, occurring in orthorhombic, prismatic crystals, also in columnar masses and formed in high temperature metamorphic rocks. It is a silicate of alumina and lime has the formulae Ca2Al3 (Si3O12)(OH) and a relative hardness of 7.
Research Zoisite