Biogenic silica is one of the most widespread forms of biogenic mineral. Unlike other biogenic minerals it is formed by an inorganic polymerisation process and is used by a number of organisms as a structural material. In material science it represents an exciting source of inspiration for novel bioinspired technological and medical applications, with particular relevance to biomedical engineering and green chemistry. Covering the fundamentals of synthesis and production from rocks, marine environments and plants to key applications, this book provides an up-to-date treatment of the field.