... and shine, no color difference, 1.model no:white crsytal stone slab2.product name:white crystal stone3.brand name:montary4.material ... and again, the scratch will disappear. If waxed, crystallized glass stone can glossing like new. 3.deal with special infectants Infected ... .HNO3.H2SO4 watery acidic liquid,oxalic acid best for inkOil paint, drawing pen oil of turpentine, acetSauce, wax, carbon powder ...