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

Application of Fibre Optics Reflectance Spectroscopy (FORS) for the determination of mineral pigments in jasper

Ulrich Henn

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OriginsOther Gemstones
17. Nov
IGC 2025
Rubies from Greenland

Gemology is traditionally practiced in laboratories, focused on identifying and analyzing gemstones.

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Laurent Cartier
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
On the nature of blue rose quartz

Over the past several years, the market for pink-coloured rose quartz has been augmented by variants

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Laurent Cartier

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