The gemstone selenite is most closely associated with the crown chakra, which represents wisdom and spirituality, as well as the third eye chakra. The colorless beauty and translucency of selenite is often attributed to purity and peace in both metaphysical beliefs and color theory. Selenite is excellent to use when meditating or trying to achieve mental clarity, as it is believed to compel the person holding it to be honest with themselves.
Selenite is considered a high-energy crystal that vibrates at a high frequency. Despite being an incredibly soft stone, so soft a fingernail can scratch it, selenite gemstones are believed to be a stone of protection that wards the mind. It is commonly used by crystal practitioners as a way to cleanse the body, mind and spirit of negativity and self-limitation--as well as cleansing other gemstones being used in healing practices.