Kordeler sandstone
Kordeler sandstone , also Voltziensandstein , is a yellowish gray or red sandstone that is quarried near Kordel near Trier in Rhineland-Palatinate . The Porta Nigra is built from this rock . This sandstone was created in the Upper Buntsandstein and is an important cultural rock in the Trier region.
Rock description and mineral inventory
It is a yellowish-gray, light or red sandstone that is rich in rock fragments. It is fine to medium-grained and has dark spots up to 3 mm in size. The pore sizes range between 0.15 and 1 mm.
The proportion of components consists of 78 percent and 12 percent binder. Its visible pore space is 10 percent. Its components consist of around 47 percent quartz , 42 percent rock fragments, 8 percent feldspar , 3 percent mica ( biotite , muscovite ) and less than 1 percent accessories ( zircon , tourmaline ). Its binding agent is clayey and partly kaolinitic .
use
This sandstone is used for solid buildings , floor and stair coverings , window sills and facade panels, graves and monuments for stone carving . It is resistant to weathering and tends to peel.
This sandstone was found in buildings at the Porta Nigra and Cathedral in Trier , Trier University of Applied Sciences; Benedictine Abbey in Luxembourg, Evangelical Main Church in Rheydt , Crucifixion Group at Petersfriedhof in Frankfurt am Main, Barmer Hall of Fame in Wuppertal and at the Kordeler Jugendhaus.
See also
literature
- Wolf-Dieter Grimm: picture atlas of important monument rocks of the Federal Republic of Germany. Edited by the Bavarian State Office for Monument Preservation, Lipp-Verlag, Munich 1990, ISBN 3-87490-535-7 , Rock No. 089.
Web links
- Entry on the former quarry on the Steinkopf in the database of cultural assets in the Trier region .
Individual evidence
Coordinates: 49 ° 50 ′ 14.3 " N , 6 ° 39 ′ 24.3" E