This fantastic essential guide explores diverse ways of working with crystals, some ancient and some new, and explains how we are getting a better understanding of how crystals work thanks to current research. The color-coded crystal finder introduces 250 new crystals, some of which have only been discovered since the publication of the first book and others which have become more widely available. Also included is a guide to crystal remedies--search by ailment or symptom to find the crystal best suited to facilitate healing.