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What might this be?

Michelle Sawicki Library

By Michelle Sawicki Library
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Michelle Sawicki Library Member

Michelle Sawicki Library

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I picked this up today and am wondering if it is a fossil or just an odd shaped rock?

 

20170419_205427~2.jpg

20170419_205522~3.jpg

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EMP Regular Member

EMP

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Looks crystalline, almost like a geode of some sort.

 

I've heard of crinoid fossils preserved like that, and the last photo shows an intriguing pattern, so maybe it is a fossil.

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Fossildude19 Regular Member

Fossildude19

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+1 for geologic. Not seeing any fossil here. 

Regards,

    Tim    -  VETERAN SHALE SPLITTER

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Bozark Regular Member

Bozark

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I've found a few pieces of concretion like this in Cretaceous marine sediments, it will usually be gypsum and sulfur deposits between cracks.

 

There is another possibility though. Quite often there are worm burrows around belemnite or baculite shells. Given how worn they are, it could be it's one of those shell fossils with a few burrows just heavily eroded. Do you have the age and location?

 

 

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abyssunder Regular Member

abyssunder

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Mineral veins, but from what, only Mo. Nature might tell.

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" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

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