They have impressive metaphysical properties, and are powerful healing stones that will filter the fifth element ether, into the etheric body.
The natural energy of these stones will help you to communicate with truth.
They are a strong stone of spiritual attunement and are very effective to aid communication.
They have a strong effect within the throat chakra, and they may aid you to manifest clairaudient and clairvoyant abilities, and they help to balance your male and female aspects.
The distinct vibration of these stones resonate within the throat and third eye chakras, allowing you to access past life knowledge.
This may be helpful if you are aiming to work in psychic employment as they enhance your effectiveness to communicate what comes through from spirit, within your day to day physical life.