The Collmberg near Oschatz is the oldest hill in Saxony and an important landmark of the region. The Collmberg is mainly composed of Cambrian to Ordovician greywackes (around 500 million years old). This hard rock has been used for construction purposes for a long time, especially for building foundations and walls. After crushing it was also widely used for road construction.



Limestone was formed at the edge of the Mügeln Basin near Paschkowitz and Schrebitz around 240 million years ago during the Zechstein age. The rock is finely laminated and has a higher magnesium content, which is why it is also known as Plattendolomit (platy dolomite)...

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