Rose quartz is a member of the largest family of stones, the silica group, and is composed of silicon dioxide with traces of titanium. It emits a calming, cooling energy which can gently remove negativity and to reinstate the loving, gentle forces of self-love. The pink colour of rose quartz has been symbolic of love throughout the ages.
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.