Balin Stone produced in Chifeng City of Inner Mongolia is one of the four renowned seal materials of China. Balin Stone can be classified into bloodstone, frozen-stone and colorful stone. The stone can be opaque or translucent and is vermeil, orange, yellow, green, blue, purple, white, gray and black. Balin Stone is in a lump. Fine and smooth, crystal as jade, Balin Stone is a rare stone-carving material. Bloodstone seal made from Balin Stone is regarded as a treasure of various seals.