Zoisite, first known as saualpite, after its type locality, is a calcium hydroxy sorosilicate belonging to the epidote group of minerals. Zoisite occurs as prismatic, orthorhοmbic crystals or in massive form, being found in metamorphic and pegmatitic rock. Zoisite may be blue to violet, green, brown, pink, yellow, gray, or colorless. It has vitreous luster and a conchoidal to uneven fracture. When