Visit Natural Agate today if you are looking for Amethyst 6 Faceted With Silver Chain Pendulums. Amethyst is a violet variety of quartz. The ancient Greeks wore amethyst and carved drinking vessels from it in the belief that it would prevent intoxication. Amethyst is a semiprecious stone often used in jewelry and is the traditional birthstone for February. A pendulum is an easy-to-use tool that can be used for divination and dowsing. It aids communication between the subconscious mind and the force fields around an object.