Septarian regulates the mental, emotional, spiritual, and physical bodies.  It is a grounding and protective stone.  It can ease one into awakening to more subtle energy systems.  A combination of Yellow Calcite, Red and Brown Aragonite, Gray Limestone, and Barite - it can help in shamanic journeys, bringing groups to work together in harmony, and bring clear vision to intentions and goals.
Chakras:  Root, Solar Plexus, and Throat