Hardback. 1997. Disilicates And Ring Silicates; 2nd ed. By W. A. Deer, R. A. Howie, and J. Zussman. (Rock-Forming Minerals, vol. 1B). This volume deals mainly with the disilicates and ring silicates including the epidote, melilite, cordierite, and tourmaline groups. In addition to the minerals dealt with in the first edition, some of the rarer but typical minerals in the calc-silicate rocks and the accessory minerals of nepheline-syenites and related rocks have been included. The orthosilicates, in particular the olivine, garnet and humite groups are covered in Volume 1A. In the years since the first edition was published, the quantity and scope of research on the disilicates and ring has grown enormously and has given rise to a wide variety of literature. This book, which has been completely rewritten and considerably expanded, summarizes the important research results and presents them in an organized fashion. Each mineral chapter is divided into sections on structure, chemistry, op