Crystals: A Modern GuideMany cultures have cherished crystals for their supposed inherent powers. Today, we use crystals personally as decoration in jewellery, in our homes as a focus for meditation, and to remind us of what is possible. All three parts of Crystals: A Modern Guide follow the same rainbow organisation of crystals, starting with quartz then working through hues of black, red, orange, yellow, green, blue, and purple, before ending with white and multicoloured