Genuine Gemstone Metaphysical Dowsing Pendulum. Quite simply, a pendulum react to your subconscious mind. When held properly, the pendulum will react to very small nerve reactions in your fingers that are generated by your unconscious mind in response to a question poised. Amethyst is natures tranquilizer, calming and soothing, assisting in the transmission of neural signals through the brain. It relieves obsessive compulsive disorder and hyperactivity.