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- Trapiche Tourmaline
- United /7 /Y , , , , in 11 3,864,939 Phillips Et Al
- Blue Tigers Eye Properties
- Jumping Sundogs, Cat's Eye and Ferrofluids
- Rendering Precious Gems
- The Gemstone Book
- What Causes the Cat's-Eye Effect in Chrysoberyl?
- Whats It Worth
- Dual-Color Double Stars in Ruby, Sapphire, and Quartz
- Summer 2004 Gems & Gemology
- Corundum Deposits of Montana
- 1 Variety Amethyst Crystal Citrine Smokey Greened
- The Gemstone Book
- Volume 34 / No. 8 / 2015
- R-^ the Journal of - T|JJF
- Various Chatoyant Stones – a Comparative Overview Author: Gagan Choudhary
- How Does a Trapiche Emerald Form?
- THE JADE ENIGMA by Jill M.Hobbs
- United Statg' [111 3,742,731 Phillips Et Al
- Autumn 2020 Gemmology Bulletin Phenomenal Glass Gemstones
- Field Studies in Sri Lanka by GIT April 2014
- Cameos of the Rainforest Interview with Martin Rapaport Taking the Strain
- Chrysoberyl Classification and Properties "Crude Classifications and False Generalizations Are the Curse of Organized Life." George Bernard Shaw
- A New Method for Imitating Asterism
- Cat's Eyes and Stars
- Colour-Change Beryl from Brazil
- Moonstone – the June Birthstone
- Synthetic Alexandrites Grown by the HOC Method in Russia: Internal Features Related to the Growth Technique and Colorimetric Investigation
- The Argyle Pink Jubilee Synthetic Diamonds Tiger's-Eye Revisited
- Tiger's Eye in the Northern Cape Province, South Africa — Grading
- Phenomenon in Gems Remarkable Optical Illusions of Colored Gemstones
- Gem Stones of the United States
- Thejournal of Gemmology
- Spring 2007 Gems & Gemology
- A Colorful Season of Celebration