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HomeIGC 2025A Photo Survey of Inclusions in Fossiliferous Amber
17. Nov
IGC 2025

A Photo Survey of Inclusions in Fossiliferous Amber

Nathan Renfro

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Other Gemstones
17. Nov
IGC 2025
Dyed purple Jade (Lavender jade or purple “Fei Cui”) from Mandalay’s jade market, Myanmar

Jade or "Fei Cui" are trade names for a stone that typi- cally contains only one or more main minera

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Elodie
17. Nov
IGC 2025
Diamonds from Than Lwin River near Mong Hsu, Myanmar

Sixteen rough diamonds were acquired in 2023 by co-author TTS from a gem dealer linked to Mong Hsu,

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Elodie
17. Nov
IGC 2025
Application of Fibre Optics Reflectance Spectroscopy (FORS) for the determination of mineral pigments in jasper

The identification of pigments is carried out routinely mostly by X-ray diffraction, FTIR and Raman

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Laurent Cartier

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Age dating Diamond Emerald Gemmology Geochemistry IGC Jade Organics Origins Other Gemstones Pearl Ruby Sapphire Spinel Synthetics Tourmaline Treatments

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