Jcnw Posted July 28, 2021 Share Posted July 28, 2021 Hi, A couple of months ago I found this egg like fossil/stone. Location: Doesburg Holland, most likely Pleistocene deposit layer, exposed due to sand mining The shape is symmetrical, and tapert, with crack lines, and small cracked bits. The outer surface looks layerd and even thickness. Furthermore, it looks like a bone/teeth line is near the surface/is penetrating it. I've attached a series of photos and a 3d model scan. Reference size is 10 eurocent. What do you guys think? Merci Gr J model.mtl model.obj Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted July 28, 2021 Share Posted July 28, 2021 Water-rolled stone / pebble, I'm afraid. No eggshell texture but some mineral traces. 1 2 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Jcnw Posted July 28, 2021 Author Share Posted July 28, 2021 interesting that it only happened on 1 side, and the other side has chips and large cracks.. Here some higher res photos Link to comment Share on other sites More sharing options...
Troodon Posted July 28, 2021 Share Posted July 28, 2021 Agree its geologic 1 1 Link to comment Share on other sites More sharing options...
Jcnw Posted July 28, 2021 Author Share Posted July 28, 2021 thxn all Link to comment Share on other sites More sharing options...
digit Posted July 28, 2021 Share Posted July 28, 2021 Concretions often have layers that mimic egg shell when they flake off. Some stones form a bit of a crust on the outer surface due to oxidation and river tumbling can polish that surface quite smooth. Erosion may add fine cracks to the outer surface completing a convincing egg-like texture. When a rounded cobble gets bounced around in a river (possibly during rainy flood conditions) part of that outer surface may break off revealing the contrast between the outer surface and the inner composition. Because these types of pseudo-fossils are so common one of out members (who actually studies fossilized eggs) has written a nice little guide that is a great way of learning more about what real egg fossils look like and how to tell them from the many "fakers" out there. Cheers. -Ken 1 Link to comment Share on other sites More sharing options...
abyssunder Posted July 28, 2021 Share Posted July 28, 2021 The first picture is strange for me, but the others suggest a river rock with nice percussion marks on the outer side. 1 " 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 Link to comment Share on other sites More sharing options...
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