Colored and Genetic Attributes of Chocolate Pearl
The preliminary research on the chemical composition£¬ Raman spectrum£¬reflectance spectrum£¬ surface micro-characteristics and the genetic attributes of the..read more
Beryllium-Diffused Treatment Blue Sapphires with Blue Body Colour
A type of beryllium-diffused treatment sapphire with blue or light blue body color has recently appeared on gem markets. The chemical composition, Raman spectrum and the ..read more
Lead-Rich Glass Substance in Filled Treated Rubies
The latest developed lead-rich glass-filled rubies, which have recently appeared on gem markets, are researched. By using routine analysis together with advanced lab analysis techniques such as... read more
Gemmological Characteristics and Diffusion Mechanism of Disffusion-treated Synthetic Sapphire
A new type of synthetic sapphires with diffusion treatment has recently appeared on gem markets, which is treated from the flame fusion synthetic colorless sapphires by the diffusion with the compound of iron.... read more
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