What is ocean tanzanite?

Ocean tanzanite is a vibrant blue-violet gemstone that is a variety of the mineral zoisite. It is only found in one location in the world: the Merelani Hills of Tanzania. Ocean tanzanite is characterized by its intense color and its clarity. The color is caused by the presence of vanadium and chromium in the mineral. Ocean tanzanite is a relatively new gemstone, and it has quickly become a popular choice for jewelry. It is also used as a collector's item.