- Minerals, ground or otherwise treated (2)
- Mica, ground or otherwise treated (1)
- Earths, ground or otherwise treated (1)
- Filtering clays, treated (1)
- Graphite, natural: ground, pulverized, refined, or blended (6)
- Cat box filler (4)
- Vermiculite, exfoliated (1)
- Slag, crushed or ground (4)
