A rose by another name:
Selenite is the most common type of Desert Rose and is the crystal formation that gave these phenomena their name. Selenite is a form of crystallized gypsum and the roses this mineral forms are usually clear columns of crystals and can form into huge columns as are seen in the Naica Mine in Mexico.
Desert Roses form when water with high concentrations of Selenite evaporates through sand causing the crystals to form in flat concentric circles reminiscent of rose petals. The crystals are usually clear or have white fibrous inclusions called spar, but in the formation of Desert Roses, will have the native sand as druse as the surrounding sand "sticks" to the forming crystal. Selenite, or Desert Roses, are found throughout the world with concentrations in the deserts of the United States, Mexico and the Middle East.