Micro-hole Basalt(grey) ,it is also called Andesite.Its density is about 2650kg/m3.Products made from this material have a pretty light grey colour,and are used widely in buildings,squares,landscapes and housing projects. (1)Finish:Sawn,Honed,Polished,Bush-hammered,Sandblasted ect. (2)Dimensions:According to customers requirement. (3)Packing:Standard export wooden crates with foam inside. (4)Material:Micro hole basalt(grey),Andesite (5)Delivery Time:Up to the quantity. (6)Shipping Port:Haikou,China MAXFINE,get the finest lava stone here. please feel free to contact with us for more information.