Septarian is composed of Calcite, which makes up the yellow centers and Aragonite, which are the brown lines. The outer grey rock is limestone. Concretion stones like Septarian provide a protective shield around our mental, physical & emotional bodies. Septarian instills feelings of positivity & joy with its uplifting energy. It is a powerful grounding stone that awakens one’s connection to Mother Earth & the nurturing energy she provides. It is also great stone for enhancing communication, teamwork & positivity in groups, it emboldens our ability to speak clearly. is a wonderful stone to wear or carry to speak in public, as it gives us confidence & allows us to gain the attention of an audience. * Origin: Madagascar * The stone you see is the exact one you will get * Colors may vary slightly depending on your viewing device.