Pyramids are an attractive addition to home decor. The four sides of a pyramid, joining at the summit or peak can be used as inspirational symbols of growth or ascension. Pyramids are considered by many to amplify and focus energy tightly through the apex.
Angelite is a form of anhydrate that is blue. It is not a common mineral as it easily alters to the much more common mineral gypsum - from the addition of water to its chemical structure. (This is fair warning not to put these stones in water and perhaps even to store them with silica gel) The name anhydrite literally translates to without water (Ari Hydra).