The Opal Book Author:Frank Leechman A book about Opals to be enjoyed by both laymen and gemologists.
Ch1. What Is Opal?
Ch2. The Foreign Opal Fields (non-Australian)
Ch3. Early Days of the Australian Opal Fields
Ch4. Opal Mining
Ch5. Scientific Considerations
Ch6. Opals in Jewelry
Ch7. Myths and Legends
Ch8. Famous Opals
Ch9. Conclusions, Appendices, etc.