Advanced Gemology Topics
Advanced gemology topics on a wide variety of technical subjects such as gemstone treatments and inclusions.
How to Measure an OTL Gemstone Refractive Index
Gem Origin Opinions: When Gemology Labs Agree to Disagree on Sapphire Origins
Emerald Origins: History and Identification
Gemstone Physical Properties
Gemstone Photomicrography: Photographing Inclusions
Gemstones and Refraction Liquids
Ouro Verde Quartz: History and Treatment
HPHT Diamond Treatments
Quartz Color Treatments
Identifying Garnets Simplified
Gemstone Radiation Treatment
Impurity Ions and Gemstone Colors
Emerald Fillers and Treatments
Identifying Inclusions of Specific Gems
Shells and Sea Shells
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