HS Code 2506.10
Quartz; other than natural sands
2506.10.00
General Duty: Free
Quartz (other than natural sands)
2506.10.00.10
THN
Sands (other than natural) containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron
2506.10.00.50
THN