Last Sunday, there was the “Day of Stones in the City” in various cities throughout Germany. Mr Wolfram Köbbel offered a walk through Cottbus to show the various stones used in the buildings and their history.
The original post in German is quite long, so I have not translated it completely yet. But perhaps some of my English-speaking readers might like to have at least a look at the pictures. If you're interested, just ask and I will extend the English text.
Permian Porphyrtuff (translation? “Porphyry tuff”?) at the House of the former Auguste Foundation:
Gneiss Giallo San Francisco (Italy, Preceambrian) with nice garnets:
Lower Cretaceous Sandstone:
Well on the market square from Upper Cretaceous Reinhardtsdorfer Sandstone (Saxony):
Blocks of bog iron ore from Peitz in the Klosterkirche (in addition to normal bricks):
Blocks of Theumaer Fruchtschiefer (“Theuma fruit slate”) at the Japanese Pavilion:
Close-up with Cordierite crystals (the “fruits”, although they look more like grain to me) from contact metamorphosis:
Passage at the Stadtpromenade with Rapakivi plates:
Close-ups with circular structure and green seams:
Devonian Lamprophyr (micro-gabbro?), with the fitting trade name Snow Flake:
We've been shown a nice mixture of various kinds of rocks during the two hour walk. They are stratigraphically also quite diverse:
The pictures above show only about half of the visited objects. There was a lot more to see, e.g. floor tiles etc. And our guide explained a lot, not only about geology but also about the history of buildings and the city.
Comments 4
Thanks kindly for translating the key parts and sharing this. As someone interested in building stone, it is always great to see others posting about their local rocks and those who focus on them.
David
Schöne Zusammenfassung. Ich hab's dieses Jahr nicht geschafft. Letztes Jahr habe ich mir die Leipziger Natursteinwelt angesehen...
David, thanks for stopping by. I didn't expect this humble blog to catch much attention from abroad. 😉
My interest in building stones started just a few years ago when I joined a similar walk through Berlin (organised by Prof. Schroeder and Dr Schirrmeister from Technical University Berlin) with some students of “World Heritage Studies” from our University.
I still need to read your book… At least it's already within reach; I just need the time.
@Lutz: Ich muß zu meiner Schande gestehen, daß ich es hier in Cottbus dieses Jahr auch erst zum ersten Mal geschafft habe, obwohl es den Rundgang schon seit drei Jahren gibt (wenn ich mich nicht ganz irre).
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