... protective; the stone has no radioactive material. 2. Usage: widely used in building's construction and decoration 3.Finishing: honed, ... natural split, sawn, bush-hammered, pineappled , ice-flowered ,tumbled(antik) and flamed etc.4.specificationssize in ... granite,basalt,limestone and sandstone tiles and slabs in different colors, such as black,red,green, ...