SEGUNDA MANO

This is a completely revised and up-to-date edition of a book that has been, for 23 years, the standard work for those learning how to identify gems and ornamental minerals. It is recommended by educational authorities as a course text book; it is also particularly suitable as a self-instructor for those entering or hoping to advance in the jewellery and gem trades, or for the keen amateur. The author has an international reputation for his gemmological research and writings, and has long been a member of the gem trades laboratory. He teaches the subject in London; he is a member of the Mineralogical Society and the British Academy of Forensic Sciences and is often called upon by the police for his expert opinion.