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Pretty sure I have an egg. Found in Milstadt, IL. (Right across the Miss. River from St. Louis)


JLN1129

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Hey y'all.

I dont have the faintest idea what I have here. Im fairly certain its an egg.  And Im fairly certain it's a fossil. Im also fairly certain my friend shouldnt have cut it in half. But if he didn't, I wouldn't be fairly certain its an egg, so..c'est al vie.

 

Any insight, thoughts, questions, or direction would be greatly appreciated, as my recent googling of the phrase 'red fossil egg in missouri' turned up nothing related.

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Welcome to the Forum.
Unfortunately, it isn't an egg. No real egg shape, and no shell texture or shell at all.

Looks like an agate or quartz nodule.

 

Please look through these:

 

 

  • I found this Informative 1
  • I Agree 6

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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Well, Im convinced of my initial wrongness.

But, seriously...that looks like egg...goo. Doesn't it?

So...agate? and crystal?

 

Man..Im looking at it again. It looks like freakin egg stuff!

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I agree with Tim for the reasons he stated.  Lots of Concretion out there that mimic eggs.

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The orange-ish color you are seeing is mineral staining, likely from iron leaching into the nodule/crystals.

 

  • I Agree 2

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

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Beautiful crystal structure -- no egg. Especially if found in Illinois. No fossil eggs in Illinois, Indiana or the surrounding states with the exception of amphibian eggs in the Mazon Creek lagerstatte, and those are the size of a pinhead give or take a mm or two.

 

 

Mark.

 

Fossil hunting is easy -- they don't run away when you shoot at them!

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As others have already said, you don’t have an egg, but it’s still a worthy contender for the “cool rock” shelf! :) 
 

Milstadt is located on Carboniferous (Pennsylvanian) aged rock. As @Mark Kmiecik mentioned, you could possibly find very small amphibian eggs in Illinois under the right conditions (Mazon Creek), but that’s about it. The local geology is way too old for a dinosaur egg or anything similar. 
 

For reference:

Below are cropped pictures of the Illinois state geological survey map. Full version can be found here: 

 

https://isgs.illinois.edu/content/bedrock-geology-map-illinois

 

CFEA6B88-B5DD-4DAA-82AA-6295E7BEDF93.thumb.jpeg.659ebed406cf1c178cd37b33518fe833.jpeg
 

ADBCB535-6523-40CF-85F1-E5B0B62EC57A.thumb.jpeg.552a9c003b9987b2a0dfccce85b884a7.jpeg

 

The good thing about science is that it's true whether or not you believe in it.  -Neil deGrasse Tyson

 

Everyone you will ever meet knows something you don't. -Bill Nye (The Science Guy)

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