These fascinating stones are composed of Calcite, which makes up the yellow centers and Aragonite which are the brown lines, while the outer grey rock is Limestone. Septarian are an ancient stone and have a plethora of metaphysical abilities. Many people have always believed Septarian to be a healing stone, as well as a protective stone. This is a great stone for nurturing and grounding you, bringing about feelings of happiness and understanding. Septarian is such a versatile stone that it is also a speaking stone, which is said to improve the communication skills of the holder. Septarian is associated with the Root, Sacral and Solar plexus Chakras.