| 2505 | | Natural sands of all kinds, whether or not colored, other than metal-bearing sands of chapter 26: | | | | |
| 2505.10 | | Silica sands and quartz sands: | | | | |
| 2506 | | 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: | | | | |
| 2506.10.00 | 10 | Sands (other than natural) containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron | t | | | |
| 2516 | | Granite, porphyry, basalt, sandstone and other monumental or building stone, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: | | | | |
| 2516.20 | | Sandstone: | | | | |
| 2714 | | Bitumen and asphalt, natural; bituminous or oil shale and tar sands; asphaltites and asphaltic rocks: | | | | |
| 2714.10.00 | 00 | Bituminous or oil shale and tar sands | t | Free | | Free |
