SilurianSalamander Posted November 2, 2023 Share Posted November 2, 2023 Are these cephalopods in chert? They appear to be agatized as well. The first two pictures are from a chunk of chert and agate that I split to find what looks like the chambers of a nautiloid cephalopod. Is this a fossil or just some way silica forms? Thanks so much! Link to comment Share on other sites More sharing options...
Lone Hunter Posted November 2, 2023 Share Posted November 2, 2023 Maybe banded agate? 1 Link to comment Share on other sites More sharing options...
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