An angelic snow-white, fibrous mother-of-pearl, not exactly ordinary stone called Skolecit. It looks soft but is surprisingly quite tough.
Cabochon - original hand cut, cut here. Silver (Ag 925 shell)
Scolecite is a protective stone, in the angelic sense of the word, so it does not have an insulating character, such as black stones. Cleanses, soothes. His drawing resembles white soft angel wings.