Satyamani Natural Black Tourmaline Lucky stone is made from natural unheated Tourmaline gemstone. It is an ideal gift for you and your loved ones. Black Tourmaline protects against smog, radiation, psychic attacks, spells of ill wishes, and all kinds of negative energy. It grounds energy as it is connected to the base chakra. Place this sphere in a room to disperse tension, stress and negative emotions of all kind. Black Tourmaline is a super lucky stone. It is best for people who remain under depression for a longer time. You can either make a ring or pendant in silver or keep it in your wallet / purse to enjoy the energy of the stones and do prayer once in a week. (Rest of the details will send you along with the product) Note: These are natural stones so there may be the difference in color and in drawing of the stone as per their occurrence in the nature. The stones have grains in them which are due to their crystal structure. These are natural stones so they are not completely finished some cracks and holes are there due to the variation of hardness in stones. You will get 100% similar product as per the availability in the stock.