THE SCIENCE OF GEMS by P.J. Fisher

THE SCIENCE OF GEMS

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KIRKUS REVIEW

The title defines the emphasis. And the lay reader may be put off by such chapters as ""The Refractive Index and its Measurement."" But it is passably readable and offers a great deal of information about the origin and composition of gems. The first section gives a brief chronology of the history and separate attributes accorded to them. There are interesting sidelights about diamond cutting, mining and the cultured pearl industry. There is a complete analysis of the various effects of light upon the different types of jewel, a chapter devoted to each specimen and instructions for private testing.

Publisher: Scribners