Angelite which is a variety of anhydrate is widely used for decorative purposes. Although it occurs in different colours and in several countries around the world, only blue anhydrate is known as angelite.
Anhydrate is a form of calcium sulphate which occurs naturally in both an anhydrous (without water) and hydrated (with water) form. The hydrated variety is gypsum which is the main ingredient of plaster. When combined with water gypsum hardens because of the process of crystallisation.
In the metaphysical world angelite is an angelic stone that can help with communication on a higher realm. Its calming energies make it ideal for use with meditation.