We are located in central Jersey, my mother broke through the concrete in our backyard to make a garden over 20 years ago. we have since dug in the soil numerous times, after a flood, strange thing started to appear, one of which is a rock which I thought was a dinosaur head but it split down...
A long time ago my brother found this rather larger rock in northern ontario canada, I think near a river.
it weights about 20lbs and measures about 6"wx12"l
Any info/thoughts appreciated, I searched the net and could not find anything like it.