Celestine also known as Celestite, gets its name from the latin for Celestial, which is the beautiful light blue tone of the sky during the spring and summer. It is used for communication, particularly focusing on speaking our truth. Celestine is used to help transition between communicating from anger into a gentler way of expressing. Its great to use Celestine in meditation as it brings a sense of calm and entering. If you place a Celestine piece by your bedside, it can aid in a restful sleep.