the purify of our quartz sand can up to 99.99% and the sizes between50-120mesh ... Thickness:0.6-10mm length:5-3000mmFurther-processing: Ends closing, sand blasting, polishing, bending, cutting, pinching, burning mouth and so on ... .2g/cm3700*103kg/cm3.-500kg/cm35.5-6.5 quartz sand / powder