Size : 40X35MM Weight : 75 GR Approx. Stone name is natural black tourmaline stone. Recommended for Reiki Healing, Aura Balancing, Meditation Note: Some stone are natural stone, the color may be a little different as pictured showed. Size: 40X35 MM Weight: 75 Gram Approx Stone: Natural Agate Tourmaline Stone These Black Agate Pyramids are cut and polished in India. Pyramids have an ability to amplify and focus the energy of one's intention. The Sacred Geometry inherent within any pyramid's design is what gives it the power within. Black Agate, like all black stones, is a grounding and protective crystal. It gives a calming peace that helps those during a period of bereavement. Black Agate gives inner strength to move on and is also very helpful in keeping the peace in stressful households. This calming stone will keep one steady when faced with practical decision-making or when doling out tough love. Physically, Black Agate alleviates problems of the bones and joints, mobility issues and pain of the shoulder or neck. It keeps the body in balance, especially as one ages. The most powerful area in a pyramid is in the centre, near the apex, so it can be helpful to focus your intention into this spot. When working with these powerful items, be sure you have stated a purpose for the highest good, and are clear about your desires.