This volume contains information on over 100 gem varieties. It explains all the technical terms needed to see gems through the eyes of a gemmologist. All entries are illustrated with a colour photograph and a symbolic representation of the physical and optical properties for ease of identification.
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Höhe: 205 mm
Breite: 154 mm
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ISBN-13
978-1-85076-426-7 (9781850764267)
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