Tidal

Colour Group: Brun Base, Cream, and Mer
Rarity: Unnatural
Importable?: Yes

Tidal - Mer on Buckskin Base

Clay

Colour Group: Boue and Brun Base
Rarity: Unnatural
Importable?: Yes

Silt

Colour Group: Boue, Brun Base, and Cream
Rarity: Unnatural
Importable?: Yes

Amanita

Colour Group: Brun Base, Champagne, Cream, Mushroom, Noir Base, Pearl, and Rouge Base
Rarity: Natural
Importable?: Yes