Angelite, also known as anhydrite or angel stone, is a glacier blue- or lilac blue-colored soft stone that has a white center and snow-white flecks with occasional brown or rusty inclusions.
A relatively recent discovery in the mineral and gem world, angelite was discovered in 1987 in Peru. The name ahnydrite comes from the Greek anhydras–meaning “without water”–a reference to angelite being a gypsum that has completely lost all hydration, becoming a stone that is “without water.”