It has maintained the general approach, as well as the order of subjects: after the discussion of the origin and presentation of the precious mineral continues with their chemical properties, crystallographic, physical and optical, as well as the methods and instruments used in its determinations.
This is an approximation to the gemology clear, concise, and systematic. A part of the information is technical by nature, but is presented in a manner understandable to the reader with a modest scientist. Describes more than 100 gems. In this second edition gives special importance to technical progress and instrumental to the identification, synthesis and imitation of gems.
Origin and location of the precious stones. Cristaloquímica. Crystallography. Physical properties of the precious minerals. The visual characteristics of the gems. Optical properties. The microscope. The spectroscope. Methods of synthesis gemological. Imitation stones and mounted. Enhancement of precious stones. Styles of precious stones. Gemology descriptive. Tables of determination.
Illustrated with 16 plates and numerous photographs in colour and black and white
Contains 336 pages with micrographs in color.
Author: Cornelius S. Hurlburt; Robert C. Kammerling
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