Rainbow Titanium aura quartz is the end result of a process which uses intense heat to infuse titanium and gold to natural quartz from Brazil. The atoms fuse to the crystal's surface, which gives it an iridescent metallic sheen on a rainbow coloured crystal.
Rainbow aura is often used to clear, energize and enliven the chakras while empowering creativity.
Beautiful and useful too! Pendulums are used much the same way as applied kinesiology or muscle testing to help determine the answer to a question.