From Amazon.com:

Beautifully illustrated, The Crystal Bible offers a comprehensive guide to crystals, their shapes, colors and applications. With informative descriptions and an easy-to-use format, it is an indispensable practical handbook for crystal lovers and users everywhere - both beginner and expert alike.

The book's directory format and beautiful, full-color photos ensure that the crystals are easily identifiable. Descriptions, which accompany each of the crystals, provide all the information on their appearance, worldwide distribution, attributes, actions and healing properties. All the major and less known stones currently available are contained inside, including those only recently discovered. A comprehensive index cross-referencing crystals to applications, aliments and conditions make this book a vital reference for all crystal users.

Judy Hall has been using her extensive collection of crystals in her healing and divination work for almost thirty years. She has written 18 books, including the best-selling Illustrated Guide to Crystals, The Crystal User's Handbook, The Illustrated Guide to Astrology, The Zodiac Pack and The Art of Psychic Protection. She lives in Edmondsham, England.