What is grain structure and vein formation in the stone?
Grain structures on the tiles are formed during the cooling process of the stone. Slower the cooling process, larger the grains are formed. The crystal and flowery pattern that are seen on the surface of the stone are grains. Some stones have lots of veins on the surface. These veins can be found in Granite as well as Marble. In Granite, the veins are mostly in black, gray and sometimes darker.
