Shiny and polished mixed stones in irregular pieces, undrilled. Tumbled stones are small, rounded crystals. They are created by putting rough rocks in a machine called a rock tumbler. It tumbles the rocks until their edges and surfaces become smooth, shiny, and polished. Each spiritual healing stone has a specific colour and psychic vibration, emitting positive energy to attune and cleanse your aura. Note: The number of stones received will vary as these are sold in bulk by the total weight and not by the number of pieces. Each stone is unique and no two stones will be exactly alike in regards to shape, size, colour, patterns.