Chapter 1 – Background -- Chapter 2 - Definition of clay and clay mineral -- Chapter 3 - Historical aspects of a natural pharmacopeia: Clay in the corpus of “the medieval pharmacopeia” written in Arabic -- Chapter 4 - Description of clay minerals -- Chapter 5 - Reactivity of clay minerals depending upon their structural properties -- Chapter 6 - General information on applications of clay in the fields of health and well-being -- Chapter 7 - Therapies based on clay -- Chapter 8 - Principal modes of clay use -- Chapter 9 - Provisioning, recycling and trade of clay -- Appendix -- Further Reading -- Glossary -- Index. .