This website has been designed for a layperson use and it is not a commercial website. The information presented in this website has been collected from several books and websites. Also all the figures and pictures in this website have been adopted from other websites with "Commercial use allowed" license.
List of the references used for this website
Books:
1- Gems and Gemstones,timeless natural beauty of the mineral world, Lance Grande and Allison Augustyn, The University of Chicago Press, 2009.
1- Gems and Gemstones,timeless natural beauty of the mineral world, Lance Grande and Allison Augustyn, The University of Chicago Press, 2009.
2- Gemstones of the World revised and expanded edition, Walter Schumann, Sterling publishing co,, Inc., New York
3- The Jeweler's Directory of Gemstones, Judith Crowe, Firefly Books, 2012.
4- Gems, Their Sources, Descriptions and Identification, R. Wabster, Butterworths, 1983.
5- Gemsrones, Sterling publishing co., inc., New York.
6- Color encyclopedia of gemstones, Joel, E. Arem, Van Nostrand Reinhold.