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Showing results for tags 'sularian'.
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Hello From Door County Wisconsin. I have been here about 12 years now and collecting fossils from here for almost all of it. My interests are in all fossils but my range is mostly sularian right now. I am currently wondering if someone can explain what a silicified stromatoporiod is. I understand it has silica but the process I don't fully understand. Also is it considered a type of agate? I see this subject gets to be a muddy topic. I just want some clarification on how silicified works. I included a pic of one from my collection. Thank you for any input.
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Found this in a creek bed in Green Bay Wisconsin. I'm wondering if anyone can tell me which trilobite it is. Additionally why is there a brown spot?
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- id
- ordovician
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