Mario Posted May 26, 2023 Share Posted May 26, 2023 hello there. is this just limestone? i found it on the shore of a lake in switzerland. thank you for any answer. weight 170 grams. Link to comment Share on other sites More sharing options...
FranzBernhard Posted May 26, 2023 Share Posted May 26, 2023 Welcome to TFF from Austria! Yes, "young" limestone . Some sort of tufa or speleothem, I can not decide. Franz Bernhar 2 Link to comment Share on other sites More sharing options...
Rockwood Posted May 26, 2023 Share Posted May 26, 2023 There could be molds of plant matter in it, but I can't positively identify any. 1 Link to comment Share on other sites More sharing options...
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