A comprehensive and beautifully illustrated guide to crystals. The perfect gift for a beginner or experienced crystal enthusiast. Find a known crystal instantly or identify an unknown crystal in this easy-to-follow directory that includes photographic identification, detailed descriptions, and information on the individual properties of each crystal--including the spiritual, mental and psychological, emotional and physical effects, plus its use in healing. It's an indispensable reference for crystal lovers everywhere, featuring over 150 crystals.