These are the Moeraki Boulders on a beach near our home and are world famous! Basically, hundreds of calcium carbonate spheres have fallen out of a cliff face and rolled down into the water. They range in size from small nodules to giant balls over 4 meters in diameter. Said to be the result of slow growth around a nucleus, the spheres are referred to as “concretions” and are thought to be the result of tiny amounts of mineral precipitation taking place over 65 million years.
I really wanted to do a B&W and these looked good as such.
Wow, they are so cool, maggiemae. And I think b&w is perfect. Thanks for sharing the information--I've learned a new word--concretions!!!! (I feel smarter today ; )