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Fossil egg?


Manu91

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Hello everyone. Im new on this forum ,I signed up to know the opinion of experts and all you fossil fans about this "fossil?" I found at a flea marked days ago. I leave you some photos , all your opinions are welcome thanks

 

20230124_152237.jpg  20230124_152740.jpg

 

20230124_152747.jpg  20230124_152806.jpg

 

20230124_152813.jpg  20230124_152829.jpg

 

20230124_152852.jpg  20230124_152900.jpg

 

20230124_152919.jpg  20230124_153008.jpg

 

20230124_152926.jpg  20230124_153019.jpg

 

20230124_153043.jpg  20230124_153056.jpg

 

20230124_152806.jpg 

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I don't think it's an egg. I doubt it's a fossil, but I don't really have a clue what it is. 

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I agree it's not an egg. It reminds me of either a concretion or an infilled geode where the center has completely crystalized. In pictures 2&3 I can't tell if the flat spot is crystal or just shiney. Is it wet or is it coated with something in that area?

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4 hours ago, Styles said:

Is it not chert?

That is kind of the problem. What is a concretion with a rind doing in brecciated looking chert ?

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I read your guides and they they convinced me even more that it is a fossil egg , there is something that cover the "oval" in the part attached to the rock wich would appear to be removed from the top. I leave you photos more accurate ....

IMG-20230124-WA0003.jpg

IMG-20230124-WA0005.jpg

IMG-20230124-WA0003.jpg

IMG-20230124-WA0004.jpg

20230124_201452.jpg

20230125_124833.jpg

20230125_124827.jpg

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If you still don't believe us, then take the thing to your local natural history museum for appraisal.

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40 minutes ago, Manu91 said:

Could it be the egg shell?

 

I don't believe so.

 

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I don't think its a Dinosaur egg im sorry. I believe its a rock.. In fact I think its a fabrication, of two rocks placed together,  I think the round rock is placed inside this rock with matrix , look at the round carved corner against the matrix that looks very weird. There is no egg shell I can see from these photos . The round rock looks like a sort of granit. 

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@Manu91

Do an online image search for "concretions".  

 

It is common for them to have exfoliating layers.

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3 hours ago, Manu91 said:

I read your guides and they they convinced me even more that it is a fossil egg ,

Now the task would be to explain in more detail what indicates this to be an egg. Egg shell must be porous enough to allow passage of gasses to and from the embryo. The shell must be thin enough for the young creature to breach. I'm having trouble seeing this here.

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I believe it is a concretion. It looks a bit asymmetrical, and the matrix seems very unusual, too, unlike any sedimentary structure I am familiar with. Going through the process of metamorphosis from a sedimentary state would have destroyed any fossils therein contained.

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Yes, you were right. It's not a fossil egg. I found images very similar to my stone, they are called "chert nodules",at this point I think it is one of these or at least something similar and certainly not a fossil. Thank you all for your opinions.

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On 1/25/2023 at 5:10 PM, Manu91 said:

Yes, you were right. It's not a fossil egg. I found images very similar to my stone, they are called "chert nodules",at this point I think it is one of these or at least something similar and certainly not a fossil. Thank you all for your opinions.


My hat off to you for taking the advice given here to heart during the examination of your specimen. Many people come to TFF seeking our opinions for items such as yours, but ignore the combined years of wisdom found here. They usually seem to have their mind made up before even creating an account to post their specimen. 
 

Your reaction to the given advice is a breath of fresh air. Thank you!
 

:tiphat:

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