In terms of healing, crystal pendulums can be used for unblocking chakras energies.
As the pendulum acts as an amplifier for the energy to flow fluidly throughout the body, it provides good information in determining your chakra for your decision-making process.
 
Pendulums are used for dowsing and divination – mystical practices in which one asks the universe for divine guidance through the movement of the pendulum.
Pendulums tap into the energetic connection between you, the Earth, and the Cosmos.
 
Clear Quartz
Quartz is one of the most powerful and energetic crystals on the entire planet, do its helical spiral crystalline form. The crystal absorbs, stores, releases and regulates energy and is a wonderful crytstal for unblocking energies that need to be released. 
 
Quartz will bring the body into balance and can be used stimulate and strengthen the immune system. Spirituallity speaking, quartz will raise the level of energy to its highest possible level and has the ability to dissolve any karmic seeds that might have been brought in the present life.