Selenite calms, brings deep inner peace, and offers access to past and future lives. It helps bring mental clarity, clearing confusion and revealing the bigger picture behind problems so it is a wonderful stone to meditate with. It is also a very protective stone, it will shield you from outside influences.
Selenite is a very soft stone so you won't want to put it in water. It is only a 2 on the MOHS hardness scale so when you need to "clear" this stone you will want to use another way such as high amplitude sound from a sound bowl or tingshas.
Chakras: Crown, 3rd Eye