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.
 
Carnelian
Used to open and balance de Sacral Chakra. This Chakra is your creative and sexual energy center associated with the colour orange.
A stone of the sun, male-energy carnelian is ideal for women who need to assert themselves or make a major career or personal leap. 
It aids in bulding confidence, courage, passion and power, making it great stone for those who are shy or passive in life. It is a very powerful stone than can assist when one need to take action.