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Schweizerische Gemmologische Gesellschaft
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Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of gilalite aggregates in rock crystal from Brazil
Natural etching structure on a crystal face of diamond (trigons), polarised light
Colour zoning in ruby from Mong-Shu, Burma
Structure in a healing fissure in topaz from Brazil
«Red fox agate» from Patagonia, Argentina
Twin-crystal of chrysoberyl
Inclusions of hematite in aquamarine, Tanzania

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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 2024

 

Our sponsors for 2024:

 
 
 
 
System Eickhorst
 
 
FAERBER
 
 
FERRARI
 
 
System Eickhorst
 
 
GRS
 
 
GÜBELIN
 
 
SSEF
 
 
Wild & Petsch
 
 
 
 
Christian Dunaigre
 
 
 
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