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Hanus Radek, Hanusovα Irena
ISBN: 978-80-7296-069-9
Rights: available
The authors of this book summarize the recommendations based on years of experience and experiments with precious stones. Anyone who deals with the repair of jewelry with precious stones, should know what the heat load stone can stand, and how stone reacts to acids and hydroxides. The book contains use and localities of favourite precious stones.

This book was published only in Czech language.

115 x 165 mm
60 pages
125 colour photos
© 2020