Name: The Chemistry, Properties and Tests of Precious Stones (Esprios Classics)
Price: 20.50 GBP
Availability: InStock
Author: John Mastin
ISBN: 9781034143628

portada The Chemistry, Properties and Tests of Precious Stones (Esprios Classics)

Type

Physical Book

Publisher

Blurb

Author

John Mastin

Year

2021

Language

English

Pages

Format

Paperback

ISBN13

9781034143628

Synopsis "The Chemistry, Properties and Tests of Precious Stones (Esprios Classics)"

"What constitutes a precious stone is the question which, at the onset, rises in the mind, and this question, simple as it seems, is one by no means easy to answer, since what may be considered precious at one time, may cease to be so at another. There are, however, certain minerals which possess distinctive features in their qualities of hardness, colour, transparency, refractability or double refractability to light-beams, which qualities place them in an entirely different class to the minerals of a metallic nature. These particular and non-metallic minerals, therefore, because of their comparative rarity, rise pre-eminently above other minerals, and become actually "precious.""

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The Chemistry, Properties and Tests of Precious Stones (Esprios Classics) - John Mastin

Synopsis "The Chemistry, Properties and Tests of Precious Stones (Esprios Classics)"

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