Hilssandstein

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Kaiserpfalz Goslar made of Hilssandstein
Lutter sandstone with cross layers, pattern approx. 20 × 14 cm
St. Andrew's Church in Langelsheim

The Hilssandstein is named after the Hils , a low mountain range located at almost 500 meters in the districts of Holzminden , Hildesheim and Northeim , Lower Saxony (Germany). The best known Hilssandstein is the Lutter sandstone , which was quarried in the vicinity of Lutter am Barenberge .

Occurrence

The Hilssandstein was geologically formed in the time of the Lower Cretaceous and was broken in two areas: Around Alfeld (near Wenzen and Ammensen ), on Hainberg near Bockenem and also around Ostlutter near Langelsheim and Lutter am Barenberge . Variety names were assigned to the respective quarries, such as Lutter Sandstein . The deposit was also broken south of Hornburg and in the Oder Forest near Schladen and Burgdorf for local purposes and they have long been abandoned.

The rock banks of the Hilssandstein are thick and light gray to white-yellow in color. It is a medium to fine-grain sandstone . It contains 88 percent quartz , 11% rock fragments, sometimes around 1 percent glauconite grains and accessories below 1 percent ( tourmaline , zircon ). It is clayey-kaolin and seldom bound with limestone. The Lutter sandstone is brownish, reddish and greenish, furthermore cross-layered and diagonally layered. It is highly porous and moderately weatherproof. Its porosity is high at 21 percent and its compressive strength is low, so it sands off heavily.

use

Around its place of extraction it is mainly used for massive plinths and for cornices on buildings. In Braunschweig the state theater and parts of the old Braunschweig castle , in Wolfenbüttel the main building of the Herzog August library and in Goslar the Frenkenberg church and the church in Langelsheim are made of this sandstone. This natural stone can be processed relatively easily by hand and has a low grain bond. It is particularly suitable for building blocks and masonry , as its susceptibility to weathering is of secondary importance. It is hardly used for sculpture work.

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. 298ff.
  • 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. ^ Grimm, picture atlas of important memorial stones. Rock no.128 (see literature)
  2. ↑ Grimm: Denkmalgesteine, p. 214

Web links