Udelfanger sandstone
Udelfanger sandstone (also shell sandstone ) is a mainly clay-bound sandstone that is quarried near Udelfangen near Trier in Rhineland-Palatinate . The geological age of this sandstone lies in the Lower Muschelkalk .
Occurrence and naming
The Udelfanger sandstone is yellowish gray and greenish gray, also whitish and spotted brown. It is very fine-grained and mica-carrying. In different layers there are deposits that are bound quartzite. Some of the technically usable rock layers are only two meters thick.
mineralogy
The Udelfanger sandstone is mainly clayey, furthermore clayey-ferritic and partly kaolinitic bound. It contains 65 percent quartz , 22 percent rock fragments, 8 percent feldspars , 3 percent lime and 2 percent muscovite mica.
The grain sizes are between 0.01 and 0.15 millimeters. The rock is a sedimentary rock (deposit rock). The Udelfanger sandstone is well weather-resistant and shows slight sanding, flaking and occasional peeling after exposure in the open air.
use
The Udelfanger sandstone is a soft stone, which was and is very popular with stone sculptors due to its fine grain. It was not only installed regionally, but also delivered abroad and overseas. Structures that were built from this sandstone are: Church in Udelfangen, bridges from Konz , Ehrang and Merzig , high school to Münster in Westphalia, Osnabrück train station , judicial building in The Hague , museum in Harlem , Amsterdam train station and Cologne regional court . This green sandstone was mainly used for solid buildings, bricks, columns and pilaster strips , window and door frames as well as stairs and for sculpting work. At the Aachen Cathedral , the Udelfanger sandstone was used for the figures of the Matthias Chapel, for pinnacles and finials , among other things .
See also
Web links
- Information about the place Udelfangen and Udelfanger Sandstein in Hierzuland , SWR television
- Sculptures made from Udelfang sandstone
literature
- W. Dienemann and O. Burre: The usable rocks of Germany and their deposits with the exception of coal, ores and salts, Enke-Verlag, Stuttgart 1929, p. 256.
- Wolf-Dieter Grimm: picture atlas of important monument rocks of the Federal Republic of Germany. Published by the Bavarian State Office for the Preservation of Monuments, Lipp-Verlag, Munich 1990, ISBN 3-87490-535-7 , rock no.091.