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About this product
- DescriptionThis is the seventh edition of a book which has been for 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 to the subject and who worked in the London Gem Testing Laboratory for twenty-five years, this edition has been completely revised and updated by E. Alan Jobbins, Keeper of Minerals and Gemstones at the Geological Museum in London for thirty-five years. The first part of the book is a comprehensive glossary on all aspects of gemstones and the terms associated with them. The second part includes sections on manufactured gems, the enhancement of gem materials and on the precautions necessary for avoiding damage to gemstones and jewellery during manufacturing, repairs and cleaning. There are comprehensive sets of tables of the physical constraints needed for gem testing, of the sources of gem materials and the cuts used to demonstrate their beauty. Fifteen pages of colour photographs will assist in the identification of inclusions and there are many useful conversion tables. Ackwledged as one of the most useful reference books available, this should be the vade mecum of all gemmologists.
- Author BiographyRobert Webster FGA was originally in the jewellery and pawnbroking trade, and won the Fellowship Diploma of the Gemmological Association of Great Britain with distinction in 1934. In 1946 the same association awarded him their coveted Research Diploma and in that year he joined London Gem Testing Laboratory, then in Hatton Garden, where he remained until he retired in 1971. He was a noted lecturer and demonstrator in various London colleges for decades and an honorary visiting lecturer to the Detective Training School of the London Police. He travelled widely, lecturing, visiting gem laboratories and mining and cutting centres in many parts of the world. E. Alan Jobbins FGA was a professional mineralogist and gemmologist at the Geological Museum in London for thirty-five years. He has been a consultant to the United Nations and the British Government Overseas Aid Programme and has advised on the setting up of gem testing laboratories, and has worked on the assessment and development of gem deposits in many parts of the world. He was editor of the Journal of Gemmology for many years.
- Author(s)Robert Webster
- PublisherThe Crowood Press Ltd
- Date of Publication01/09/1998
- SubjectHandicrafts, Arts & Crafts
- Place of PublicationLondon
- Country of PublicationUnited Kingdom
- ImprintNAG Press
- Content Note28 colour photographs, line illustrations, charts, tables
- Weight504 g
- Width129 mm
- Height198 mm
- Spine27 mm
- Revised byE. A. Jobbins
- Edition Statement7th Revised edition
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