Works Consulted

  • Chesterman, C. W.. National Audubon Society Guide to North American Rocks and Minerals. New York: Chanticleer Press, Inc. 1998.

  • Cipriani and Borelli. Simon and Schuster's Guide to Gems and Precious Stones. Ed. Kennie Lyman. Trans. Valerie Palmer. New York. Simon and Schuster, Inc., 1986.

  • Cunningham, S. Cunningham's Encyclopedia of Crystal, Gem, and Metal Magic. St. Paul. Llewellyn Publications. 1998.

  • Schumann, W. Gemstones of the World. New York. Sterling Publishing Co. Inc., 1997.

  • Aber, S. Gem Lore. 28 Aug. 1999. Emporia State University. 5 Dec. 1999. [].

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