New Members Beeba Posted August 2 New Members Share Posted August 2 Hi everyone. This is out of a box of rocks I bought at an auction in Butte County California, which is near the Sacramento River and a hundred miles from Mt Lassen. I don't believe all of them were found here, but I don't know. Thank you all in advance. Link to comment Share on other sites More sharing options...
Ludwigia Posted August 2 Share Posted August 2 Hard to tell and particularly with no definite information on its provenance, difficult to identify. One would need to study the microscopic internal structure in order to determine if this is a sponge. I believe from what I see however that this is just a weathered porous rock, but maybe I'm wrong. Perhaps someone familiar with the area sees this otherwise. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
New Members Beeba Posted August 3 Author New Members Share Posted August 3 Thank you, I figure you're right. And I'm learning so much about fossils that in the time since I posted this, I've seen enough other pictures to think it might not be a Sponge or coral. There's so much to learn. Thank you so much for your help. 1 Link to comment Share on other sites More sharing options...
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