Chart of Gems from A Popular Treatise on Gems
This chart displaying the colors of gems and minerals is from A Popular Treatise on Gems and Minerals by Lewis Feuchtwanger, a German Jewish immigrant to the United States, a doctor who was also well known for his scientific research as a metallurgist and gemologist. The book was first published in 1859 and was reprinted in several editions.
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Credits
Courtesy of the Smithsonian Institution Libraries, Washington, DC.
Published in: The Posen Library of Jewish Culture and Civilization, vol. 6.
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