The diameter is 5 cm Kambaba Jasper is a stone of Peace and Tranquility, imbued with the nourishing green energy of Nature. Its dark mystic circles and deep green swirls comforts and protects, calms and relaxes, soothing troubled minds and restoring balance to the body and spirit. Its slow steady frequency expands one’s ability to focus and is a remarkable aid in meditation, granting the release of negative thoughts and feelings, especially those that plague one’s consciousness on a continual basis. Stimulating the Heart Chakra, Kambaba Jasper draws wisdom from its ancient life energies and encourages one to open the heart to loving the self and others more fully, and increases the ability to receive love in return. [Eason, 321][Lembo, 188-189] Kambaba Jasper is one of the more exotic Jaspers, a rare orbicular variety from Madagascar and South Africa. In its depths one can literally glimpse the origins of life on our planet and touch a tangible form, of the primordial ooze that nurtured our atmosphere and advanced the creation of all living things. A sedimentary stone, Kambaba Jasper is comprised of microcrystalline Quartz interlaced with Stromatolites, ancient fossilized colonies created by cyanobacteria (blue-green algae) and other primeval microorganisms. These Stromatolites date back more than three billion years and are the oldest known fossils, containing the earliest records of life on Earth. [Eason, 321][Lembo, 189][www.spiritrockshop.com]