The Meinl Sonic Energy Amethyst Crystal Singing Bowl is a pure union of Amethyst and Quartz Crystal. This beautiful singing bowl creates a pleasant aura with its sound and design for a calming effect in a variety of settings. A long-lasting, spherical tone spreads when the singing bowl is gently tapped or rubbed. All Crystal Singing Bowls are delivered with a silicone ring to avoid possible impact and to ensure the best resonance. The corresponding crown chakra promotes perfect understanding, fullness and the connection with the divine origin.