Description
The Encyclopedia of Gemstones by the prominent Czech gemologist Karel Mařík provides both expert and lay readers with an overview of 189 types of gemstones, divided into 5 categories based on frequency of use and rarity. For each stone, hardness, chemical composition, refractive index, specific gravity, double refraction, dispersion, pleochroism, and magnetic susceptibility are listed, with all numerical data thoroughly revised for this publication. Additionally, the author mentions the location of occurrence, trade names, varieties, special features, size, unique specimens, similar stones or imitations, their uses, treatments, and care for each stone. An important part of the book is the visual accompaniment in the form of 700 original photographs of raw materials and faceted stones. In addition to these, pictograms clearly indicating possible color shades and corresponding prices complement the description of each stone.
Information
Author: Mařík Karel
Language: Czech
Publication date: December 7, 2016
Manufacturer: Pavel Jeřábek - Nakladatelství PLOT
Genres: Encyclopedia, Books, Non-fiction literature
Type: Hardcover books
Pages: 300
ISBN/EAN: 9788074282966