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 Greekanhydras--meaning "without water"--a reference to angelite being a gypsum that has completely lost all hydration, becoming a stone that is "without water."
