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HomeIGC 2025Zoisite and its many color
17. Nov
IGC 2025

Zoisite and its many color

Clemens Schwarzinger, Steve Ulatowski, George R. Rossman

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Other 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
The Importance and Methodology of Undertaking a Literature Search for Gemmological Research and Article Publishing

Performing a literature search is a very important—but often neglected—part of doing gemmologica

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Elodie
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

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

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