Openable Silver Pentagram Cage Metal Pendulum at wholesale prices. Crystal healing therapy involves placing gemstones on the body to draw out negative energy. Crystal healing is an alternative medical technique in which crystals and other stones are used to cure ailments and protect against disease. There are seven main chakras, known as the root, sacral, solar plexus, heart, throat, third eye and crown chakras. They are tied to physical and emotional problems in the body. Order online now.