mineral

Peach Selenite

Gypsum (CaSO4·2H2O)

Mohs hardness of 2, color ranges from soft peach to pinkish-orange, vitreous to pearly luster, monoclinic crystal system, perfect cleavage in one direction, specific gravity around 2.3

Identified August 7, 2026More mineral →

Explore Peach Selenite in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Mohs hardness of 2, color ranges from soft peach to pinkish-orange, vitreous to pearly luster, monoclinic crystal system, perfect cleavage in one direction, specific gravity around 2.3

Formation & geological history

Formed in evaporite deposits from the evaporation of ancient sulfate-rich salt water bodies and saline lakes, often millions of years old during periods of intense arid climate.

Uses & applications

Commonly used in holistic healing, crystal collections, decorative carvings, and lamps, though base gypsum is widely used in drywall, plaster, and agriculture.

Geological facts

Selenite is named after the Greek goddess of the moon, Selene, due to its characteristic moon-like glow. It is an extremely soft mineral that can easily be scratched by a fingernail and will dissolve in water.

Field identification & locations

Easily identified by its very soft nature (Mohs 2) and lack of effervescence when tested with acid compared to calcite. Found globally, with major deposits in Mexico, Morocco, and the United States.