Original from the 1880's, excellent condition. 35 pages and 7 illustrations. Title: Precious Stones, Scientific Library of Families and Schools No. 47. Language: French. Subjects: Precious stones during ancient eras, precious stones deposits and mining, types of stones : Corundum Ruby, Sapphire, Topaz, Amethyst, Emerald, Spinel, Chrysoberyl, Quartz, Cat's Eye, Tiger Eye, Agate, Opal, Zirconium, Garnet, Vesuvianite, Tourmaline, Peridot, Cordierite, Feldspar, Turquoise. Author & Editor: Paul Gaubert, Gustave Philippon, Henri Gautier.