mineral

Desert Rose

Selenite Rose (Gypsum: CaSO4·2H2O)

Hardness: 2 on Mohs scale (scratchable with a fingernail); Color: Tan, sandy, or brownish-white; Luster: Pearly to dull/earthy; Crystal Structure: Monoclinic, forming bladed rosettes; Cleavage: Good in one direction but obscured by sand inclusions.

Hardness: 2 on Mohs scale (scratchable with a fingernail)
Color: Tan, sandy, or brownish-white
Luster: Pearly to dull/earthy

Identified March 29, 2026More mineral →

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Physical properties

Formation & geological history

Formed in arid, sandy conditions through the evaporation of salt basins or shallow saline water. The crystals grow within the sand, trapping grains between crystal blades. Most are relatively young geologically (Holocene to Pleistocene).

Uses & applications

Primarily used as decorative specimens for mineral collectors, metaphysical 'healing' stones, and in garden landscapes. Gypsum is used industrially for drywall, though Desert Rose specimens are too valuable as curiosities for that purpose.

Geological facts

Despite their flower-like appearance, they are entirely inorganic. While most are Gypsum-based, some can be formed from Barite, which is much heavier. The 'petals' are actually lens-shaped crystals flattened by the pressure of the surrounding sand.

Field identification & locations

Identify by its unique rose-like petal structure and soft, sandy texture. It feels significantly lighter than a rock of similar size. Commonly found in the Sahara Desert (Algeria/Tunisia), Saudi Arabia, Mexico, and the southwestern United States.