Selenite is the transparent to translucent variety of gypsum, a soft sulfate mineral that forms in evaporite environments where mineral-rich waters concentrate and precipitate. In contemporary metaphysical shops, the name “selenite” is often used broadly for several gypsum forms, especially silky white satin spar, even though strict mineral usage distinguishes them. The name comes from Greek words associated with the moon, reflecting the stone’s pale glow and light-bearing appearance.

In modern witchcraft and crystal practice, selenite is commonly associated with clarity, cleansing, peace, spiritual focus, and energetic reset. These are symbolic and devotional associations rather than scientifically demonstrated effects.