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Edelsteine und Schmucksteine
Alle Edel- und Schmucksteine der Welt. 1500 Einzelstücke. by Walter Schumann
A book listing information for 1500 kinds of gemstone. How they look uncut als with different shapes: origin, structure, hardness, mining and handling.
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Edelsteine (german)
by Cally Hall, Daniel Jutz, Harry Taylor
This book is completly illustrated in color. It helps to identify gemstones and lists information about their origins, habitats, optical and physical properties and handling.
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