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Tourmaline: A Gemstone Spectrum (extraLapis English, #3)

Brian C. Cook

Gold - The Noble Mineral - ExtraLapis English No. 5

Various

ExtraLapis English: Beryl and its Color Varieties

Unknown Author

Turmalin. Der Edelstein des Regenbogens Neueste Nachrichten von der Turmalin-Gruppe extraLapis No. 6

Ferdinand Damaschun Brian C. Cook

Topas: Das prachtvolle Mineral, der lebhafte Edelstein (extraLapis)

Unknown Author

ExtraLapis English: Nevada Jackpot!

Unknown Author

ExtraLapis English: Diamond, the Ultimate Gemstone

Unknown Author

Pyrit und Markasit extraLapis Nr. 11 : (Das eiserne Überall-Mineral)

Unknown Author

ExtraLapis English: The Italian Island of Elba

Unknown Author

ExtraLapis English: Apatite The Great Pretender

Unknown Author

ExtraLapis Fluorite: The Collectors Mineral

Unknown Author

ExtraLapis English: Calcite, The Mineral with the Most Forms

Unknown Author

By Christa Behmenburg extraLapis English No. 2: Emeralds of the World (1st First Edition) [Paperback]

Christa Behmenburg

Insel Elba. Die klassische Urlaubsinsel der Mineralogie. ExtraLapis No. 20.

PEZZOTTA Federico -

ExtraLapis English: AmethystUncommon Vintage

Unknown Author

Granat: Die Mineralien der Granat-Gruppe: Edelsteine, Schmuck und Laser (extraLapis)

Unknown Author

ExtraLapis English: Topaz; Perfect Cleavage

Unknown Author

ExtraLapis English: Garnet: Great Balls of Fire

Unknown Author

ExtraLapis English: Pakistan: Minerals, Mountains and Majesty

Unknown Author

ExtraLapis English: Smithsonite Think Zinc!

Unknown Author