Angelite is a lovely blue stone with a peaceful energy that is calming and soothing. 
It is a strong communication stone, and an extremely helpful healing crystal, that will benefit you in a number of ways. Many people choose to use it is because it both aids you to connect with angels and in a some people may stimulate the birth of psychic gifts, and aid channeling and mediumship. 
It is beneficial because it  has a vibration that is very helpful to aid contact with beings in the higher realms and in particular with members of the angelic kingdom. It is also helpful to assist you to make contact with spirit guides. It is a strong communication stone, and an extremely helpful healing crystal.