
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
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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.
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Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock
Granite
Granite (Phaneritic intrusive igneous rock)
igneous