Beautiful polished septarian hearts. Georgeous golden brown and caramel colors. Several different sizes available. Septaria is a marl concretion with characteristic radial contraction cracks which are partically infilled with new crystal formations. If you have questions, please contact: rscustomerservice@gmail.com. We offer a variety of custom home decor pieces such as laser etching, custom cut stone, and address plaques. Contact us to personalize a pet memorial, or garden marker. They make great gifts!