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: | | | | |
2505.10.10 | 00 | Sand containing by weight 95 percent or more of silica and not more than 0.6 percent of oxide of iron | t | Free | | $1.97/t |
2505.10.50 | 00 | Other | t | Free | | Free |
2505.90.00 | 00 | Other | t | Free | | Free |