...is a rock that forms during a volcanic eruption. It's so full of inner spaces, spaces that were gas bubbles at the time of formation, that the stuff floats. And it floats right up onto the beach at False Bluff.
We rarely find a really big piece but the stuff has such different shapes and colors and textures that finding any of it is a treat...kind of like an Easter egg hunt...only on the beach and not just at Easter.
There are buckets full of the stuff at False Bluff but lots of it makes it back home at the end of each stay.
Here are a few samples showing some of the wide array of colors and shapes.