Crystals have been used as items of great spiritual significance and powerful personal adornments for thousands of years. Whether collected for their beauty, for research, or as tools in healing practices, The Crystal Guide provides a comprehensive reference to crystals, their purpose, spiritual qualities, and how to identify them in one easy-to-use and dazzlingly colourful book. Organised alphabetically, the book spotlights more than 200 of the most popular crystals, from andalusite to zoisite, and includes an overview of each one, along with mineral, astrological, chakra, numerical, and metaphysical properties, and value. Other features include: AUTHOR: Patti Polk is one of the top agate collectors in the world. A passionate rockhound, she has been collecting, cutting, and polishing rocks, crystals, and minerals for jewellery and display for over 20 years. A skilled artist, jeweller, and dowser, Patti is the author of two of the best-selling rock collecting books, Collecting Rocks, Gems, and Minerals and Collecting Agates and Jaspers of North America. SELLINGPOINTS: ? Tips for locating, buying, and collecting ? Geological formation of crystals ? Use and care of crystals 500 colour photos