Kansas Pop Rocks are the common name for the stones that are sometimes trademarked as Boji Stones®. They come from the same place, at the base of a natural pyramid mount in the center of the continental USA, and are the same type of rock, having the same properties.
Kansas Pop Rocks usually come in pairs, a smoother stone which has Yin or female energy and is referred to as the female, and a rougher stone that has Yang or masculine energy and is referred to as the male.
Kansas Pop Rocks are excellent for balancing energy and polarities of all kinds. They are used a lot in energy healing and psychic healing to release blockages. They are also used a lot to balance the chakras and align them. They are also excellent for grounding excess energies, grounding people who are feeling "spacey", and for shielding.
In the both the household plant pots and out in nature, Kansas Pop Rocks are used to promote plant growth. Kansas Pop Rocks are also used in crystal healing for arthritis, back pain, general healing, regeneration of cells, adrenal glands, chronic fatigue, and physical energy.
Kansas Pop Rocks may contain sulphur. For this reason I suggest using the indirect method when making crystal elixirs or gem essences.
Note: Healing crystal meanings are spiritual supports to healing, not prescription or healthcare information.