Weathering phenomenon with banded precipitation of iron oxides and hydroxides (Liesegang’s rings) at the surface of an Upper Cretaceous sandstone (possibly the Coniacian Involutus sandstone), Lehof-Felsen (“Lehof Rock”) near Quedlinburg, Subhercynian Cretaceous Basin, Saxony Anhalt, Central Germany. The width of the photographed section is not more than 15 cm.