The Gorara stone is used to carve out this beautiful shivling . The craftsmen use chisel and hammer to bring out curved sculpture followed by grinding and polishing. The stone carving shows the intricate craftsmanship of the artisans . Lord Shiva Form Available in BLACK and GREY color. The Grey color is the one where there is no polish whatsoever. Thus, it can be used for Dugdhabhishekam or Shiva Abhishek any time. The Grey shivlingstone turns into black color if you put oil or ghee onto it. This is because it is Soapstone. Made out of Gorara Stone Shivling for puja. A hand finished item. Shivling sthapna is also a Pooja activity done in case you wish to have the shivling sealed on to the floor of a temple. The shivling has a shape which makes it very easy for water to fully run through it and then fall from the yoni. The shivling stone is very soft , although not very brittle. The shivling is a must have for Shravan Maas poojan