super white quartz sand,high purity: 98%-99.9%,Widely use ... rubber,and grinding ma QUARTZ SAND QUARTZ POWDERQuartz sand ,quartz powder are non-metallic mineral products , they are hard and durable ... mineral composition is SiO2 , the color of quartz sand is white ,semitransparent or totally transparent. Widely use in glass ,cast , ... mesh16-26 mesh26-40 mesh40-70 mesh80-120 mesh super white quartz sand