FossilBoi Posted October 13, 2021 Share Posted October 13, 2021 Got these from a friend and wondering what type of rock this is. look pretty cool. Link to comment Share on other sites More sharing options...
FranzBernhard Posted October 13, 2021 Share Posted October 13, 2021 (edited) Welcome to TFF from Austria! Could be some kind of concretions, the brown knobs being former iron sulfide (pyrite or marcasite). But I am not completely sure. Where do they come from (general area)? Maybe someone is able to recognize these things immediately. And: Thanks for including a ruler ! Franz Bernhard Edited October 13, 2021 by FranzBernhard grammar Link to comment Share on other sites More sharing options...
FossilBoi Posted October 13, 2021 Author Share Posted October 13, 2021 11 minutes ago, FranzBernhard said: Welcome to TFF from Austria! Could the some kind of concretion, the brown knobs being former iron sulfide (pyrite or marcasite). But I am not completely sure. Where to they come from (general area)? Maybe someone is able to recognize this things immediately. And: Thanks for including a ruler ! Franz Bernhard Thank, I believe it from southeast Asia Link to comment Share on other sites More sharing options...
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