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Showing results for "Gemology"
Gemology
Cornelius S. Hurlbut
Guide to Affordable Gemology
W. William Hanneman
Dictionary of Gems and Gemology
Mohsen Manutchehr-Danai
The Sisk Gemology Reference Volume 1 / Prominent gems
Jerry Sisk
Ancient Astrological Gemstones & Talismans: The Complete Science of Planetary Gemology
Richard S. Brown
Gems & Gemology in Review: Synthetic Diamonds
James E. Shigley