This fascinating text comprises a detailed guide to gemmology, perfect for the aspiring amateur and seasoned practitioner alike. Covering in detail the fundamentals of the subject, this rare book constitutes a great addition to any gemmological collection and is a veritable must-have for those looking for an introduction to the subject. This text is split into the two parts: Transparent Stones and Translucent and Opaque Stones, and contains chapters on: The Materials to be Studied; The Bending of light, and its Effects; The Pocket Lens; Inclusion in Stones; The Chelsea filter; The Microscope;...