| Naics index | Naics index description |
|---|---|
| 212390 | Calcined phosphate rock mining and/or beneficiating |
| 212390 | Calcite mining and/or beneficiating |
| 212390 | Catlinite mining and/or beneficiating |
| 212390 | Celestite mining and/or beneficiating |
| 212390 | Chasers mining and/or beneficiating |
| 212390 | Colemanite mining and/or beneficiating |
| 212390 | Corundum mining and/or beneficiating |
| 212390 | Cryolite mining and/or beneficiating |
| 212390 | Diamonds, industrial, mining and/or beneficiating |
| 212390 | Diatomaceous earth mining and/or beneficiating |