Chemical composition:

SiO2 99.5%Min ; Al2O3 0.04%Max ; Fe2O3 0.04%Max.

Physical property:573℃

Hardness: 7

Density: 2.65

Melting point: 1710℃

Usage : Fine quartz powder ,quartz powder, 4-6 mesh , 6-10 mesh , 10-20 mesh , 20-40 mesh

40-100 mesh , 325 mesh , 600 mesh.