Argile 
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g.
Caractéristiques
- kaolinite, Al2Si2O5(OH)4).
- Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide.
- Clays develop plasticity when wet but can be hardened through firing.
Sources: Wikipedia — Clay
Fiche provisoire créée automatiquement, en cours de vérification.
Information documentaire: ne constitue ni une recommandation d'usage ni une allégation phytosanitaire ou vétérinaire. Vérifie la réglementation de ton pays avant tout usage.