For most people a quarry is an unknown, intriguing world yet an initial look is often enough to trigger their curiosity. First time visitors to our quarry immediately notice that there are two main mining levels, an upper one characterised by shades of yellow and white stone while at depths of up to six metres below, a striking spectrum of red tones catches the eye.
In between is an horizon formed of fine grained sandstone and siltstone that is frequently distinguished by so called "ripple marks", wave like structures within the surface of the rock, which demonstrate that the layers were once created by flowing water. Fortunately, the bedrock within Schweinstal was predominately formed horizontally and this greatly facilitates the quarrying of the stone.