- Minerals, ground or otherwise treated (1)
- Magnesite, crude: ground, calcined, or dead-burned (1)
- Earths, ground or otherwise treated (1)
- Clay, ground or otherwise treated (1)
- Cat box filler (1)
- Perlite, aggregate or expanded (1)
- Pulverized earth (1)
- Slag, crushed or ground (1)
