The Weuste quarry
Once upon a time.... This is how the story could begin. About 320 million years ago, Sprockhövel was still on the equator.
A river delta, as wide as the distance between Mülheim and Duisburg, flowed towards Sprockhövel into the primeval sea. Exactly at the mouth to the Urmeer lies today the quarry and sawmill Lange e.K. .
The sediments that this river transported were deposited throughout the entire area of the river delta. Cold and warm climates, as well as moorland and forest landscapes have shaped the landscape again and again over time. Forests sank into the moor (which later became coal) and Sprockhövel slowly moved towards its present location. Plate displacements, enormous mud avalanches and tsunamis happened again and again.
An enormous shifting of the plates caused the river bed to rise from the horizontal to the horizontal (today approx. 120 degrees). The Ruhr sandstone was born.
Around 1760, the coal near the surface began to be mined. The transport was still done by horses and carriages, later by train. Today's main gallery is located at a depth of 56 m and extends through the entire quarry area. The coal seams Sengsbank and Sengsbänkchen are among the oldest coal seams in Germany, located at the southernmost point of the country. Both can still be visited in the quarry today.
The fossilized seabed, the Rippelmark, is a special highlight, created by tides and conserved by a gigantic mudslide. Parts of the Rippelmark can be found in the Ruhr University in Bochum, in two schools in Wuppertal and in the leisure pool in Hannover. The original of course in our quarry.
The current deposit is about 2000 m thick. Our Ruhr sandstone, which is one of the oldest and hardest Ruhr sandstones, owes its hardness to the permanent high pressure. It is fine-grained, has a very low water absorption, is free of pebble inclusions, acid-resistant and usually far exceeds the technical properties of granite. The colors in our deposit are gray, gray/brown and brown. The material is polishable and flammable. On the " outer crust " of the rocks fossilizations can be found again and again.
The Ruhr sandstone is,
- polishable and flammable
- grey, grey/brown and brown
- very hard up to 2.9 in the tip (granite light grey is about 2.4)
- although geologically it is a sandstone, its properties make it more of a quartzite
- salt and acid resistant
- very low water absorption
Guided tours and events:
We will publish dates under the category Events and set up a booking portal for guided tours and workshops.
Führung und Events:
Wir werden laufend unser Eventprogramm erweitern. Schauen Sie immer wieder einmal vorbei
Unsere Events bieten wir jeden Samstag an. Weitere Termine auf Anfrage an Tl@Steinbruch-Lange.de