Gems and Superstitions

[Article Info]

Works Cited

Hershey, Willard. The Book of Diamonds. New York: Hearthside Press, 1940.

Kunz, George Frederick. The Curious Lore of Precious Stones. Philadelphia: J.B. Lippincott Company, 1913.

"Opal." United States Geological Survey. 17 Jul 2002. Accessed 22 Feb 2008.
< http://minerals.usgs.gov/minerals/pubs/commodity/gemstones/sp14-95/opal .html >.

Precious Stones Guide Vol 8. 2004. JJKent Inc. Accessed 22 Feb 2008. < http://www.jjkent.com/articles/precious-stones-guide-vol8/index.htm >.

Pictures used

“Beryl.” Amethyst Galleries' Mineral Gallery. 17 Mar 2007. Amethyst Galleries Inc. Accessed 22 Feb 2008
< http://www.galleries.com/minerals/silicate/beryl/beryl.htm >.

“Black Opals For Sale in the U.K.” J.J. 4 IT Ltd. Accessed 22 Feb 2008 < http://www.black-opal.co.uk/ >.