Planet Earth—Gemstones, Paul O’Neil and the editors of Time-Life Books: Time-Life Books, Arlington, VA, 1983, 176 p.
Gemstones of the World, Walter Schumann (translated by Evelyne Stern): Sterling, New York, 1984, 256 p.
Gems & Crystals from the American Museum of Natural History: An illustrated guide to the history, lore, and properties of the gems and minerals of one of the world’s greatest collections, Anna S. Sofiandes and George E. Harlow: Simon & Schuster, New York, 1990, 208 p.
The Gem Collection (Treasures in the Smithsonian Series No. 1), P.E. Desautels: Smithsonian Institution, Washington, 1983, 77 p.
Gemstones of North America, John Sinkankas: D. Van Nostrand Company, Inc., Princeton, 1959, 675 p.
Gems and Precious Stones of North America—A popular description of their occurrence, value, history, archeology, and of collections in which they exist, G.F. Kunz: Dover Publishing, New York, 1968 (reprint of a classic work dated 1892), 367 p.
Emerald and Other Beryls, John Sinkankas: Chilton Way, Radnor, PA, 1981, 665 p.
Handbook of Gem Identification, R.T. Liddicoat Jr.: Gemological Institute of America, Santa Monica, CA, 1981 (11th ed.), 450 p.
Field Collecting Gemstones and Minerals, John Sinkankas: Geoscience Press, Prescott, AZ, 1988, 2nd ed., 397 p.
Prospecting for Gemstones and Minerals [Formerly Gemstones and Minerals: How and Where to Find Them], John Sinkankas: Van Nostrand Reinhold, New York, 1970, 2nd ed., 397 p.