I need help identifying two rocks (pics)

[acombs1793]

Okay well this morning i went to let my dog out and i saw this rock just sitting there on the ground, well actually two of them pretty close to one another. I dont know how they got there, i would of seen them any other day as i would walk right by the spot every 4 hours to let my dog out. Im posting pics in the hope you can tell me what and possibly how these rocks came to be there. I live in georgia if that matters, maybe certain rocks dont appear in places. Thank you for your time and im happy to be a part of the boards.

[colorshapetexture]

You need to walk your dog more often.
That top one looks like an agate. How big is it?
But agate is rare in Ga. Jasper to for that matter. And it doesn't look like chert.
You found this in your yard? Public area?

[acombs1793]

it is the size of a baseball, and yes like right outside my door