- Barite, ground or otherwise treated (1)
- Pyrophyllite, ground or otherwise treated (1)
- Spar, ground or otherwise treated (1)
- Talc, ground or otherwise treated (1)
- Barium, ground or otherwise treated (2)
- Clay for petroleum refining, chemically processed (3)
- Clay, ground or otherwise treated (5)
- Filtering clays, treated (2)
- Kaolin, ground or otherwise treated (3)
- Cat box filler (12)
- Perlite, aggregate or expanded (12)
- Pulverized earth (2)
- Pumice, ground or otherwise treated (1)
- Silicon, ultra high purity: treated (2)
- Vermiculite, exfoliated (2)
- Roofing granules (5)
- Slag, crushed or ground (3)
