From acne and cataracts to sprains and vomiting, this reference lists more than 100 medical conditions andnbsp;describesnbsp;the physical symptoms,nbsp;psychological ramifications, andnbsp;correct healingnbsp;gemstones for each. The most effective form of the gem is specified8212;a polished pocket stone rather than a necklace, for example8212;and in some cases more than one kind of crystalnbsp;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.