| 212322 |
Sand, blast, quarrying and/or beneficiating |
| 212322 |
Sand, industrial (e.g., engine, filtration, glass grinding, proppant), quarrying and/or beneficiating |
| 212322 |
Silica mining and/or beneficiating |
| 212322 |
Silica sand quarrying and/or beneficiating |
| 212323 |
Andalusite mining and/or beneficiating |
| 212323 |
Aplite mining and/or beneficiating |
| 212323 |
Ball clay mining and/or beneficiating |
| 212323 |
Bentonite mining and/or beneficiating |
| 212323 |
Bleaching clay mining and/or beneficiating |
| 212323 |
Brucite mining and/or beneficiating |