Although often called septarian nodules, this sedimentary rock is more technically a concretion. A concretion is a spherical, egg shaped, or irregular mass that forms around a nucleus. They often develop radial cracks that get filled in by other minerals. The name septarium (plural septaria) comes from the Latin septum (“partition”).

Septarian nodules originate from the Cretaceous period meaning they formed around the same time dinosaurs became extinct. It was once known as Dragonstone.

Believed to hold the wisdom of the Earth, the calm of the water, and the fire of the dragon. It can make you feel as strong as a dragon. Said to help you have better tolerance, patience, and emotional flexibility. When meditated upon it can find an underlying illness and then focus the body into healing itself, absorbing your bad energy that has been held over time and transmitting that energy into strength when needed.