Sard Onyx Obelisk LargeThis Sard Onyx Obelisk is black with beautiful banding of grays and white tones that flow around its sides. Sard Onyx is a combination layered Sard and Onyx. This stone is a must have when going through difficult times. It is associated with the base chakra which helps keep you grounded and centered. It also helps in healing sorrow and grief. The high polish obelisk appearance and shape makes it perfect for a grid.