Credits

Permission

1.All photos from Jill Banford's website.
2.Bstone discription chart at http://Starlightusa.com

References

1.Hall,Cally"A jewel and gem stone book"Gemstones.1998

2.Pellant,Chris "A book that describes Rocks and Minerals" Rocks and Minerals 1998

3.Microsoft"An encyclopedia"Encarta Encyclopedia 1996

4.Zim ,Herbert and Shaffer,Paul "A book byGolden Press"Rocks and Minerals 1985