Concretion or egg or ???

[ffinder]

Found in my back field digging a water line....

 

[Nitric]

Cool find! Have no idea what it is! does look like an egg though!

Welcome! To the site! or first post! lol

 

[trikikiwi]

Welcome to TreasureNet ffinder

In my opinion, it looks like it was made over time, with something in the centre starting a concretion process.

 

[sutphin]

HEY NEW MEMBER WELCOME TO TNET . NOW WHERES THE HEN THAT GOES GO WITH THAT EGG.

 

[AU Seeker]

What state and area of the state was this found when it comes to geological oddities and or most rocks/minerals. location is many times key to identifying them?

My first guess would be it's a Moqui ball/marble, but these are only found in certain locations.

http://meteorite-identification.com/Hot Rocks/moqui.html