Maulbronn sandstone
The Maulbronn sandstone is a sandstone that is mined around Maulbronn , Pfaffenhofen and Sinsheim -Weiler in Baden-Württemberg. It belongs to the Stuttgart formation (formerly reed sandstone or reed sandstone layers) of the Middle Keuper . The Stuttgart formation can be dated to the international Carnium level.
Rock description
The Maulbronn sandstone is a dark red sandstone with parallel and oblique layers. It is a feldspar-bearing sandstone and its visible surfaces sometimes look like flamed. Its bond is clay-ferritic and hardly pebble. The components consist of 49 percent quartzite rock fragments and 25 percent quartz, the proportion of alkali feldspar is 23 percent and muscovite 2 percent. Accessory mineral components (less than 1 percent) are rutile , zircon and opaque mineral grains. Its red color comes from hematite . Its weathering behavior is different, this depends essentially on the respective fracture locations.
Use and structures
This sandstone is and was used for solid buildings, for stairs and floors, window sills and wall panels, tombs and stone carving work.
Maulbronn sandstone was found at the Romanesque Maulbronn Monastery , at the Technical University of Karlsruhe , at the Erbprinzenpalais and at the Federal Court of Justice in Karlsruhe, the Stuttgart State Theater , at train stations in Basel, Karlsruhe, Frankfurt am Main, Mainz, Amsterdam and at other buildings on the Rhine and Main until after Holland used.
See also
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. 269f.
- Wolf-Dieter Grimm: picture atlas of important monument rocks of the Federal Republic of Germany. Published by the Bavarian State Office for Monument Preservation, Lipp-Verlag, Munich 1990, ISBN 3-87490-535-7 .
Individual proof
- ^ Grimm: Monument Atlas of Important Monument Stones. Rock No. 97 (see literature)