Zoisite has a Rhombic crystal system and is in the mineral class of group silicate. It is formed during a metamorphosis process in rough masses. Its green coloring comes from the presence of chromium and vanadium and is many times found contained with Ruby.
Today, most Zoisite found is the type called ‘Ruby in Zoisite’ (also known as Anyolite). This combination of gems has highly energetic properties. If you find the effects of Ruby by itself a bit much, the Zoisite softens that rough road.