Rock Identifier
Desert Rose (Gypsum Rose) (Gypsum (CaSO4·2H2O) with Sand Inclusions) — mineral
mineral

Desert Rose (Gypsum Rose)

Gypsum (CaSO4·2H2O) with Sand Inclusions

Hardness: 2.0 (can be scratched with a fingernail); Color: Tan, sandy brown, or white; Luster: Pearly to dull/earthy; Crystal Structure: Monoclinic, forming bladed rosettes; Cleavage: Perfect in one direction.

Hardness
2
Color
Tan, sandy brown, or white
Luster
Pearly to dull/earthy
Identified More mineral
Explore Desert Rose (Gypsum Rose) in the encyclopedia →

Identify your own rocks.

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

Physical properties

Hardness: 2.0 (can be scratched with a fingernail); Color: Tan, sandy brown, or white; Luster: Pearly to dull/earthy; Crystal Structure: Monoclinic, forming bladed rosettes; Cleavage: Perfect in one direction.

Formation & geological history

Formed in arid, sandy environments through the evaporation of shallow salt basins or groundwater. These crystals precipitate as moisture evaporates, trapping sand grains within the growing gypsum crystal lattice.

Uses & applications

Primarily used as a collectible mineral specimen and in metaphysical or ornamental decor. Gypsum itself is used in plaster, drywall, and fertilizer.

Geological facts

Also known as the Selenite Rose. The largest desert rose ever recorded weighed over 125 pounds. They are popular because no two specimens are exactly alike due to the random way the sand grains are incorporated.

Field identification & locations

Identify by its unique flower-like 'petal' structure and soft texture. Commonly found in the Sahara Desert, Saudi Arabia, Mexico, and Oklahoma (where it is the official state rock). Avoid getting it wet as gypsum can eventually dissolve.