PaleoOrdo Posted August 18, 2020 Share Posted August 18, 2020 Last week I visited a silurian site and found this stone. I wonder which kind of animals this is? And which kind of stone, which is blue inside with a relative thin layer of white material on the surface. The animals are "printed" on the surface. Martin Link to comment Share on other sites More sharing options...
Ludwigia Posted August 18, 2020 Share Posted August 18, 2020 Looks like Brachiopod on the left and Bryozoa on the right. The stone appears to be limestone. Can't say what's causing the blue color though. 5 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
PaleoOrdo Posted August 19, 2020 Author Share Posted August 19, 2020 I agree about the animals. If it is limestone: The blue color inside the stone (RELATIVE HARD MATERIAL) must be partly from clay, since some limestones have clay. Here is a picture from the site, IT SEEMS ALSO COVERED BY A METALLIC LAYER: Link to comment Share on other sites More sharing options...
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