Products DetailsAGATE SHIVLINGA, Code: ASI 10. Agate is a very hard stone. It is used to worship Lord Shiva. Dark in colour and possessing shine like a Yogi shining with the glow of Tap and the dark shade signifying the depth of energy and strength of cosmic powers. Especially Pran Pretishtith by Pankaj Khanna by Yogic system..