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Thought they were fulgurites? Guess not? Oh, Dear


drusseau

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Please help me with this.  I am new to this and completely absorbed in the wonder and mystery of real Florida treasure! If I need more or better pix, let me know.  oh,  Little Manatee River.  Huge pile of ancient shells. Thank you guys.  I was supposed to go on ID trip to Bishop but was rescheduled and I just can't wait...I got ants in my pants...lol 

 

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I'm was gonna go with some kind of burrows but now thinking coral or sponge maybe? Clearer pictures would be helpful.

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23 minutes ago, Lone Hunter said:

I'm was gonna go with some kind of burrows but now thinking coral or sponge maybe? Clearer pictures would be helpful.

 

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Hello and welcome to the forum!

 

Not an expert, but seeing that there aren't any bubbles/vesicles/voids, they aren't hollow, no branching, etc. there likely wasn't any significant heating going on with these - not fulgurites. I have a small fulgurite I could show, but can't get to it at the moment. Infilled burrows is a good guess, it's neat to have all those shell bits in there. 

 

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Pasek, M.A., Block, K. & Pasek, V. Fulgurite morphology: a classification scheme and clues to formation. Contrib Mineral Petrol 164, 477–492 (2012). https://doi.org/10.1007/s00410-012-0753-5

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"Argumentation cannot suffice for the discovery of new work, since the subtlety of Nature is greater many times than the subtlety of argument." - Carl Sagan

"I was born not knowing and have had only a little time to change that here and there." - Richard Feynman

 

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