Selenite Crystals

Selenite is a transparent to translucent variety of gypsum known for its silky luster, striated crystal faces, and often delicate, blade-like form. These crystals form in evaporative environments where mineral-rich waters slowly deposit layers of calcium sulfate. Selenite is relatively soft—measuring 2 on the Mohs hardness scale—and can be easily scratched with a fingernail, making it a mineral best appreciated for display rather than durability.