This 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.
Acknowledged as one of the most useful reference books available,
this should be the vade mecum of all gemmologists.
General
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