The image was obtained from a sample from a sandstone block used to form one of the statues on the Jenner's Department Store Building, Princess Street, Edinburgh. The secondary minerals have helped cement the grains together and give the sandstone coherence. The sandstone is therefore potentially less prone to self destruct through expansion and contraction of clay minerals with the uptake of rainwater and its evaporation. The image represents an area approximately 130 µm wide. The image is courtesy of Dr. John Dixon, Geology and Geophysics, University of Edinburgh and was used as the front cover illustration for Scottish Journal of Geology (2001, v37). This article was published on 2024-07-01
