Colditz Castle
Videos
Colditz Castle is a Renaissance castle in the town of Colditz near Leipzig, Dresden and Chemnitz in the state of Saxony in Germany. The castle is between the towns of Hartha and Grimma on a hill spur over the river Zwickauer Mulde, a tributary of the River Elbe. It had the first wildlife park in Germany when, during 1523, the castle park was converted into one of the largest menageries in Europe.
Castle Colditz in 2011
Colditz Castle 1828 by Ernst Ferdinand Oehme, Albertinum, Dresden
Coat of arms of Augustus of Saxony and his wife Anne of Denmark over the gate to the outer courtyard
The mannerist portal (rhyolitic tuff) of the church house carved by Andreas Walther II during 1584
Tuff
Videos
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into a solid rock. Rock that contains greater than 75% ash is considered tuff, while rock containing 25% to 75% ash is described as tuffaceous. Tuff composed of sandy volcanic material can be referred to as volcanic sandstone.
Etruscan tuff blocks from a tomb at Banditaccia
A house constructed of tuff blocks in Germany
Light-microscope image of tuff as seen in thin section (long dimension is several mm): The curved shapes of altered glass shards (ash fragments) are well preserved, although the glass is partly altered. The shapes were formed about bubbles of expanding, water-rich gas.