Fossil or odd rock

[cody milam]

Found this couple years ago at still house lake in Killeen Texas don't quite know if it's some thing it's 3round objects joined together ,each orb gets smaller Any help is appreciated

 

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[rock]

Put it in the rock forum they will know looks like a rock type to me. Welcome to tnet

 

[GatorBoy]

Concretion

 

[57chevy]

Concretion

Like GatoBoy said concretion. Which means rock formed around a fossil. So to see the fossil you would have to cut open/into the rock. Being careful not to damage what ever is inside.

 

[cody milam]

Should I open it and if so how ?

 

[bone2stone]

Doubtful that it contains anything.
It is most likely remnants of an old trace fossil such as a burrow. Have you ever seen a crayfish ball up mud?

Bone2stone

 

[DDancer]

Could be a concretion~ no not all concretions are formed around fossil materials, few are and some are simple casts~ or it could be a coprolite. Hard to tell but it is an interesting geometry