Selenite or satin felspar is used for cleansing and charging people, crystals and spaces. It acts like smudging and great if you don't prefer smoke cleansing. If you have heard of charging crystals in the moon or sun, selenite is an inherently cleansing crystal that doesn't need to be charged. If you are heavily using a crystal for meditation, a selenite bowl could be used for recharging or cleansing any negative energy the crystal may have picked up.
