Book excerpt: This unique book examines the basic principles underpinning the fascinating art of crystal healing. Presented in a simple, easy-to-read style, it is a classic, key piece of writing for anyone seeking to unlock the powerful healing properties of more than 120 crystals. The result of twelve years' research and personal study, author Michael Gienger presents here an exhaustative examination of the therapeutic and healing properties of crystals for all our spiritual, mental and physical needs. Containing a wealth of stunning colour photography and detailed descriptions of crystals and their application, this ground-breaking work provides the first ever comprehensive survey of the art of crystal healing.