School of Environmental Sciences Building Stones Guide to identify rocks used in walls and as building stones This is a guide to help you to investigate, describe and identify the rocks used in stone walls as building             and facing stones. Building stones used in Liverpool and Cheshire   (click image for larger view and explanation) Building stone in the crypt of Catholic cathedral, Liverpool Polished slab (cut as a facing stone) in the Pitcher laboratory, Earth & Ocean Sciences Dept., Liverpool University Building stone used in boundary walls of the University of Liverpool               Permo -Triassic sandstone blocks in a wall in Brownlow Street; details of blocks showing various sedimentary structures.   Building stones used in the Harold Cohen Library, Liverpool University Facing stone used in the Physics Building, Liverpool University Facing stone used on the Oceanography/Maths Building, Liverpool University) Facing stone used on the Engineering Building, Liverpool University Volcani-clastic rocks (Borrowdale Volcanics) showing details of bedding. Stone used for paving or as a flagstones, Chester Stone used for paving or as a flagstone, Little Moreton Hall, Cheshire . Granite showing flow orientation of phenocysts & a cross cutting vein Granite showing flow orientation of phenocysts Granite showing flow orientation of phenocysts & a cross cutting vein Granite (Shap granite) showing flow orientation of phenocysts Granite (Shap granite) showing phenocrysts Granite (Shap granite) showing flow orientation of phenocysts and xenoliths Jurassic bioclastic limestone (Portland Stone) showing evidence of  weathering Jurassic oolitic limestone (Portland Stone) showing evidence of weathering Carboniferous crinoidal limestone showing  stylolites Carboniferous crinoidal limestone; the crinoids show geopetal structures Carboniferous crinoidal limestone + coral & brachiopods Faulted serpentinite; faults shown by vein displacements Vertical burrows in a mica-rich sandstone  Primary current lineations in a mica-rich sandstone Ripple marked surface on mica-rich sandstone