Lingams are only found in the Narmaada River high in the mountains of Mandhata. One of the seben sacred holy places of pilgramage in India. Eahc lingam contains sacred markings symbolic of the marks of Lord Shiva's forehead. The stones are “Crypto Crystalline Quartz” said to contain the loftiest vibration of all stones on Earth. The emanate a vibration that will purify your temple or home. The stone represents both the male energy of knowledge & the female energy of wisdom. No two stones are alike.