Aragonite crystals located overhead on the main route not to far from the entrance are showing black and brown staining caused by smoke of torches and fires.
Unstained aragonite crystals located close to the Great Hall.
Aragonite crystals
© photos Thomas
Gramanitsch - 10.9.2011 / 12.9.2013 - Andreas
Eichinger & Helmut Schütz
- 1980
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created : 1.12.2001 - updated : 14.12.2021 - ©
Th.Gramanitsch