Faiz Gems offers Black Obsidian 6 Faceted Gemstone Pendulum at Wholesale Price. Black tourmaline is known for its ability to protect and purify. It repels negativity and is said to convert it into positive energy. It is a wonderfully protective stone to wear or carry if you feel the weight of others? emotions around you. These Pendulums are often used as tools for spiritual healing and inner growth. Pendulum will swing back and forth or in a circular motion. A pendulum works by converting energy back and forth, a bit like a rollercoaster ride. It repeatedly switches its energy back and forth between potential and kinetic. Place the order at our online metaphysical store.