at 900
The construction of sacred buildungs began after 900 which led to the first business activity of Rochlitzer Porphyry as a bride. At that time people started to mine the material in quarries.
Mentionable buildings from that time:
- The tomb of holy Arno from Würzburg in the church St. Aegidien in Colditz (892)
- castle and town church, Eilenburg (970)
- castle of Glauchau (980)
- oldest part of St. Nikolai in Doebeln (981)