Liesegang banding refers to the rings and fan-shaped color patterns that appear in some sedimentary rocks such as Petra’s sandstone. The colorful patterns are formed by groundwater that saturates the sedimentary layers and intermittently deposits minerals within (rhythmic precipitation). Different minerals produce different colors, and some act as natural cements that help turn loose sediment into rocks. Minerals commonly seen in liesegang banding are red iron oxide (rusted iron), black manganese, yellow sulfur, and green copper carbonate.
Common in and around Petra, and in the Mujib Gorge.