Selenite is a mineral that is classified as a variety of gypsum. It is a translucent, white, or colorless crystal that often forms in large, tabular or prismatic shapes with noticeable striations. The name "selenite" is derived from the Greek word for moon, "selene," due to its moon-like glow when polished or light is shone upon it.
Selenite is composed of hydrous calcium sulfate, which gives it a soft and easily cleavable nature. It has a Mohs hardness rating of 2, meaning it is a relatively fragile mineral. When scratched, selenite exhibits a characteristic white streak.
This mineral is commonly found in evaporite environments, where water evaporates and leaves behind the dissolved minerals. Selenite often occurs in desert regions, caves, and salt flats, where it forms as a result of the evaporation of saltwater or shallow bodies of water. It can also be created through the weathering of other minerals such as anhydrite or gypsum in sedimentary rocks.
Due to its distinctive crystal structure and attractive appearance, selenite is widely sought after by collectors and used in various decorative and spiritual practices. It is known for its metaphysical properties, being associated with purification, peace, and clarity. Selenite can be polished into various shapes such as wands or spheres, and it is a popular choice for creating crystal grids and meditation tools. In addition to its ornamental use, selenite has practical applications in industries including food and beverage, construction, and medicine.
