... quartz sand,high purity: 98%-99.9%,Widely use in glass ,cast , Man-made stone plate ,plastic ,rubber,and grinding ma QUARTZ SAND QUARTZ ... POWDERQuartz sand ,quartz powder are non-metallic mineral products , they ... the main mineral composition is SiO2 , the color of quartz sand is white ,semitransparent or totally transparent. Widely use ...