[PDF.88tf] Gemstone Enhancement, Second Edition

Gemstone Enhancement, Second Edition

[PDF.vh97] Gemstone Enhancement, Second Edition

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 | #1405164 in Books |  1994-06-15 | Original language:English | PDF # 1 |  .72 x6.53 x9.23l,1.27 | File type: PDF | 272 pages

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This is the second edition of Nassau's important work on the methods of modifying and enhancing gemstones and of treatments available to enhance the colour and appearance of gemstones. This includes various types of irradiation and heat treatment, colourless impregnations, bleaching, dyeing, diffusion and other processes. Some of these processes date back at least two thousand years; others are of quite recent origin.

The book covers such advances as glass and p...

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