| Naics index | Naics index description |
|---|---|
| 212390 | Diatomite mining and/or beneficiating |
| 212390 | Dragstones mining and/or beneficiating |
| 212390 | Dried phosphate rock mining and/or beneficiating |
| 212390 | Earth, diatomaceous, mining and/or beneficiating |
| 212390 | Emery mining and/or beneficiating |
| 212390 | Fertilizer minerals, natural, mining and/or beneficiating |
| 212390 | Fill dirt pits mining and/or beneficiating |
| 212390 | Fluorite mining and/or beneficiating |
| 212390 | Fluorspar mining and/or beneficiating |
| 212390 | Garnet mining and/or beneficiating |