Is it a fossil egg?

[Robert1]

 

 

Hi

Many years ago I found this strange eggshaped stone. Is it a fossil egg?

It is quite heavy, rusty brown color egg shape object. The whole "egg" is covered with something like veins. The biggest one goes around vertical. It is circa 6 cm long and 5 in diameter.

 

Thanks for your help

 

 

 

 

 

 

 

 

 

 

 

 

[Danielb]

Where did you find it?

[marguy]

this reminds me of a bezoar

[Ludwigia]

5 minutes ago, marguy said:

this reminds me of a bezoar

Just learned something new. If it was cracked open would there be hair or such like in it? Are they lightweight?

[Robert1]

44 minutes ago, Danielb said:

Where did you find it?

I am not sure. It was maybe 15 years ago, not underground-surface found. I live in central Poland.

[JohnJ]

Photos in sunlight might help.  It looks a lot like a hard sandstone with more resistant mineral veins.

[marguy]

17 hours ago, Ludwigia said:

Just learned something new. If it was cracked open would there be hair or such like in it? Are they lightweight?

in section one can see like agglutinated hairs, like intimately welded, and the density is clearly lower than that of classic rocks.

[Mahnmut]

8 minutes ago, marguy said:

in section one can see like agglutinated hairs, like intimately welded, and the density is clearly lower than that of classic rocks.

You are talking about bezoars, not the rock in question, right?

Bezoars can form from very different materials, including hair or not. There are also "Pharmakobezoars" after ingestion of great amounts of certain pills, those arr dangerous because they can release the inlcuded substances unpredictably.

Back to the rock in question, I do not think its either a bezoar or an egg, just a very nicely shaped rock. Not sure, but to me it looks more like a product of erosion than a concretion.

Best Regards,

J