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Schweizerische Gemmologische Gesellschaft
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Twin-crystal of chrysoberyl
Structure in a healing fissure in topaz from Brazil
Inclusions of hematite in aquamarine, Tanzania
Two-phase inclusions in sapphire, Sri Lanka
Agate from Anzi, Maroc
Natural etching structure on a crystal face of diamond (trigons), polarised light
Agate from Reichweiler, Germany
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers

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Central Conference 2024: Hotel- und Conference Center Sempachersee, Nottwil
09.06. - 11.06.2024

www.hotelsempachersee.ch

Hotel Sempachersee
 
 
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© SGG/SSG 2023

 

Our sponsors for 2023:

 
 
 
 
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