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HomeIGC 2025Pink-orange gem quality euclase from Bahia, Brazil
17. Nov
IGC 2025

Pink-orange gem quality euclase from Bahia, Brazil

Lætitia Gilles-Guéry

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Other Gemstones
17. Nov
IGC 2025
Hurlbutite from Myanmar

A crystal of the very rare mineral hurlbutite originating from Myanmar (without further locality det

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Elodie
17. Nov
IGC 2025
Amber from the Thanbaya Gaing Coal Mine, Minbu Township, Magwe Region, Myanmar

Amber was recently discovered by local coal miners at the Thanbaya Gaing Coal mine located 6.5 km no

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Laurent Cartier
17. Nov
IGC 2025
Low Temperature Heat Treatment of Madagascar Sapphire

One of the challenges facing gemologists today is the detec- tion of low temperature (below 1200°C)

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Elodie

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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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