Crystalline  Extracted from the mines of the Lybids in Golpayegan County The dimensions of its production in the market are 40 lengths and stairs and cabinets One of the advantages of this is that it is the best stone in terms of strength after granite, and with the fact that its price is more suitable. The functional uses of the product can be seen on the inside and outside of the outside and the floor of the building and the outside areas, Crystalline such as parks, as an example of it to the stones It should be noted that the best stone is for cold regions The number of its sourts is three, and its colors are golden and blue