Dug up in my garden

[Calvin76]

Hey folks, I dug up this big rock in Maine and I've carried it all around the country.
It has little crystal like structures on the outside. Please help identify it. Thank you so much.

 

[Calvin76]

I checked it, it's not magnetic. I've put the pascagoula rock and gem show in my cal er near. Maybe I'll cut all you nice folks in on the bounty. Thanks

 

[Reanm8er]

Yeah, I'll go right out and celebrate with a small coffee! LOL!

 

[gastor]

I have NO idea what it is! I'm actually a little more curious as to why you "carried it all around the country"?

Is it magnetic?