Little dated. O the subject this edition has been completely revised and updated by E Alan Jobbins Keeper of Minerals and Gemstones at the Geological Museum in London or35 years It includes a comprehensive glossary on all aspects of
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Good but This is the seventh edition of a book which has been or years the bible of professional and amateur gemmologists as well as retail jewellers Originally written by Robert Webster an expert who dedicated most of his life
Excellent. Emstones and the terms associated with them andsections on manufactured gems the enhancement of gem materials and the precautions necessaryto avoid damage to gemstones and jewellery during manufacturing repairs and cleani.