Flonheim sandstone

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Flonheimer sandstone is the name of a Sandstone places from the rheinhessischem Flonheim in Rhineland-Palatinate . It originated in the Rotliegend .

nature

It is a medium-sandy sandstone with rubble sizes up to 25 millimeters. It is dark brown with light stripes. Its mineral inventory consists of 66 percent quartz , 33 percent rock fragments and 1 percent feldspar , muscovite , biotite , tourmaline and zircon .

The bulk density is 2.3 kg per cubic decimeter with a compressive strength of 37 to 73 Newtons per square millimeter with a porosity of 13 percent by volume . In addition, it is resistant to frost and aggressions . However, polishing is not possible. The color is light yellow with a slight brown component. These properties also made it very popular with stone masons .

History and Buildings

Even the Romans used Flonheim sandstone for their buildings, it was supplied for the construction of the Cologne and Mainz cathedral , for many churches, town halls, town houses and public buildings, it was also used as a material for sculpting work . In the Middle Ages it was transported to the Rhine ports by horse and cart, later on the Wiesbachtalbahn line, which was specially built for this purpose .

The wealth of Flonheim, represented in buildings, was largely due to the once flourishing quarry industry , which was not operated again after the Second World War , giving way to the manufacture of artificial stone. "Flonheimer Sandstein", also used in the 14th century for princely court and castle buildings, can be found in many old buildings in Rheinhessen.

Roman quarries from Flonheim supplied the quartz sandstone for the sculptures now kept in the Alzeyer Museum (including Viergötterstein).

The conservation area Alzeyer mountain with cottage Schauinsland and thunder mountain views , in the old quarry area, stands since 1962 under nature protection .

Well-known structures

The most famous structures that were built with Flonheim sandstone, among others, include:

See also

literature

  • 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 evidence

  1. ↑ Flonheimer Sandstein at Fraunhofer Information Center for Space and Construction IRB

Web links