From acne and cataracts to sprains and vomiting, this reference lists more than 100 medical conditions and describes the physical symptoms, psychological ramifications, and correct healing gemstones for each. The most effective form of the gem is specifieda polished pocket stone rather than a necklace, for exampleand in some cases more than one kind of crystal is described to be effective. A comprehensive appendix with color photos of all prescribed gemstones, a guide to assembling basic home crystal kits, and a bibliography are included.