Ch. 24: Onyx and Sardonyx

• Contents & Preface
• Ch. 1: Gemstone and Jewelry
• Ch. 2: Classification Gemstones
• Ch. 3: Diamond
• Ch. 4: Emeralds
• Ch. 5: Pearl
• Ch. 6: Ruby
• Ch. 7: Sapphire
• Ch. 8: Amethyst
• Ch. 9: Coral
• Ch. 10: Garnet
• Ch. 11: Opal
• Ch. 12: Topaz
• Ch. 13: Turquoise
• Ch. 14: Cat's Eye
• Ch. 15: Chrysoprase
• Ch. 16: Jade
• Ch. 17: Moonstone
• Ch. 18: Peridot
• Ch. 19: Kunzite
• Ch. 20: Tourmaline
• Ch. 21: Amber
• Ch. 22: Bloodstone
• Ch. 23: Moss Agate
• Ch. 24: Onyx and Sardonyx
• Ch. 25: Other Gemstones
• Ch. 26: Gem and Diamond Cutting
• Ch. 27: Imitation Gems
• Ch. 28: Gem Lore
• Ch. 29: Famous Gems, Diamonds, Jewelry
• Ch. 30: Gemstone Museum Collections
• Ch. 31: Diamond Cutter
• Ch. 32: Arts and Crafts Jewelry
• Appendix: List of Gemstones
• Appendix: Gemstone Properties: color, carat etc.
• Birth Stones
• Bibliography
• Glossary
• Index

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Comment:

• Catelle. The Diamond.
• Ch.18: Expensive Farce: The Great Diamond Hoax
•  
• Hershey. Book of the Diamond.
• Ch. 12: Other Gemstones
•  
• Williams: Diamond Mines South Africa I
• Ch. 1: Ancient Adamas
•  
• Al-Biruni. Book of Stones.
• Appendix I: Evaluation of 'On Stones'
•  
• Al-Biruni. Book of Stones.
• Ch. 20: Magnet
•  

Deposits Diamond Gemological Properties Gemstones Gold History Mine Mining Production USA

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