_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. _Mineral & Gem Trails of Delaware, Virginia, Maryland, North Carolina_, Ed and Bert Sloan: EDSCO, Box 79, Oneonta, NY 13820, 1978, 52 p. _Gem Testing_, B.W. Anderson: Butterworth, Woburn, MA, 1980, 9th ed., 384 p. _Gemology_, C.S. Hurlbut Jr. and G.S. Switzer: Wiley, New York, 1979, 596 p. _Gems and Jewelry_, Joel Arem: Bantam Books, New York, 1975, 159 p. _Gem Cutting: A Lapidary’s Manual_, John Sinkankas: Van Nostrand Reinhold, New York, 1962, 2nd ed., 297 p. [Illustration: Lavender-hued rose quartz, Brazil.] _Journals_ _Gems and Gemology_ (quarterly). Articles on gemstone localities, identification, and history. Includes annual index, lab notes, book reviews, and gemological abstracts. Published by the Gemological Institute of America, 1660 Stewart Street, Santa Monica, CA 90404. _Lapidary Journal_ (monthly). Articles on gemstones, locality information, expeditions to find sources of gemstones, gemcraft, club news, show news, product news, and book reviews. Published by the Lapidary Journal, Devon Office Center, Suite 201, 60 Chestnut Avenue, Devon, PA 19333-1312. _Rocks & Minerals_ (bimonthly). Features articles of interest to students of mineralogy, geology, and paleontology. Includes articles about gemstone localities. Regularly lists announcements of hundreds of mineral, rock, and gem shows (local, State, national, Canadian, and European). Includes media reviews, museum notes and announcements, and classified ads. Published by Heldref Publications, 4000 Albermarle Street, NW., Washington, DC 20016. _Jewelers’ Book Club—Catalog_ (annual). Catalog of more than 550 jewelry-related publications from more than 250 publishers. Includes video- and audio-cassettes and book reviews. _Jewelers’ Book Club—News_ (quarterly) informs members of new titles and provides book reviews. Published by the Jewelers Book Club, Chilton Way, Radnor, PA 19089. _Videocassettes_ _Gemstones of America_ (60 minutes), Smithsonian Institution, 1991, can be ordered for $29.95 from the Museum Shop, Attention: Mail Order Clerk, National Museum of Natural History, 10th Street and Constitution Avenue, NW., Washington, DC 20560; (202) 357-1535. _Splendid Stones._ This National Geographic Society special details the evolution from raw material to cut and polished gem, outlines many of the steps involved in marketing gemstones, and examines some of the world’s most famous jewelry collections. It can be ordered for $95 from the National Geographic Society, 17th and M Streets NW., Washington, DC 20036. Acknowledgments