The variegated shape of this succulent has yellowish spots in the areas of the epidermis where there is a lack of chlorophyll; stains and shades that will never be identical in different plants thus making each of them unique and much sought after by collectors around the world. A succulent known as "living stone", for the shape similar to a pebble and the colors that tend to blend easily with the surrounding rocky environment; in this case, the variety "julii" (whose name was chosen in honor of the German botanist Julius Deremberg) takes on light gray tones, sometimes whitish, to camouflage with the typical limestone areas of quartz from which it comes. Its fleshy leaves are arranged in pairs, and on the top show numerous deep veins of darker almost black color. From the crack between the two leaves in autumn, bloom beautiful white daisies.