From Chapter 25: Chapter 25
| HTS Code | Description | General Duty |
|---|---|---|
| 2506100000 | Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape Quartz | Free |
| 2506100010 | Quartz Sands (other than natural) containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron | Free |
| 2506100050 | Quartz Other | Free |
| 2506200000 | Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape Quartzite | Free |
| 2506200010 | Quartzite Crude or roughly trimmed | Free |
| 2506200080 | Quartzite Other | Free |