Desert Rose

Physical Properties

Hardness: 2 on Mohs scale (fragile); Color: Tan, beige, or sandy white; Luster: Pearly to dull; Crystal structure: Monoclinic bladed crystals arranged in a radial pattern resembling flower petals; Gravity: ~2.32.

Formation & Geological History

Formed in arid, sandy conditions through the evaporation of salt basins or shallow sea water. The crystals grow around grains of sand, which become trapped within the mineral structure. They primarily form in the Quaternary period.

Uses & Applications

Primarily used for geological collecting, decorative display, and metaphysical practices. Gypsum in other forms is used for drywall and plaster, but the rose habit is kept as a specimen.

Geological Facts

Each 'petal' is a single crystal. The largest desert rose ever found was 17 inches long and weighed over 125 pounds. They are often associated with the 'Selenite' variety of gypsum.

Field Identification & Locations

Identified by its distinctive rose-like shape and sandy texture. Commonly found in North Africa (Sahara), Saudi Arabia, Arizona, and Mexico. Collectors should look for them in dry lake beds or salt flats.

Identified on: 4/20/2026

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