Selenite, also known as satin spar, desert rose, or gypsum flower are crystal structure varieties of gypsum. It is a very useful stone. Selenite is used by many to absorb negative energy and so is frequently employed to cleanse other crystals. It can act as a shield to protect the wearer from negativity but it is a soft stone. Therefore, its use in jewelry is limited to earrings and necklaces, which are protected from rough conditions. Being a form a gypsum it is also recommended to avoid prolonged exposure to excessive moisture or water.