The definitive resource for mineral collectors, this comprehensive book describes the structural relationships among orthosilicateminerals, known for their hardness and brilliant colors, and the geological conditions that create prized specimens. It is illustrated with nearly 500 structure diagrams, color photos, and electron micrographs that will help collectors appreciate the minerals already in their collection, build a collection with greater depth, and find additional information. A web link allows readers to view the crystal structuresin three dimensions for a richer appreciation of...