Gypsum occurs in nature as flattened and often twinned crystals, and transparent, cleavable masses called selenite. Selenite contains no significant selenium; rather, both substances were named for the ancient Greek word for the Moon. Desert rose is the colloquial name given to rose-like formations of crystal clusters of gypsum or baryte which include abundant sand grains. Explore Art By God’s collection of Gypsum Desert Rose and Selenite at affordable prices in a variety of colors and sizes. Gorgeous Gypsum and Desert Rose for sale. Gypsum, Desert Rose, Selenite and more