You may be familiar with rose quartz, amethyst, tourmaline, or selenite—but what about agrellite, Blade of Light, star garnet, or king cobra jasper?A wealth of knowledge and amazing healing powers can be gained by studying the wide world of crystals, from the most popular varieties to the lesser known.Cassandra Eason, practicing witch and author of more than 130 books on every aspect of the magical and mystical, supplies this compendium of wisdom full of never-before-seen research, tips and tricks, and easy practices anyone can incorporate into their daily routine to increase good fortune, ward off the evil eye, heal the body and the spirit, and more.