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Schweizerische Gemmologische Gesellschaft
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Fire opal, Mexico
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Inclusion of apatite in ruby from Tanzania
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of hematite in feldspar (sunstone), India
Inclusions of hematite in aquamarine, Tanzania
Dendrites in agate
Spinel crystal in dolomite marble, Burma

Current

Save the date: SGG/SSG Central Conference 2026:

21-23 June 2026

Deltapark Vitalresort, Gwatt bei Thun

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Seehotel Wilerbad, Wilen am Sarnersee
 
 
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© SGG/SSG 2026

 

Our sponsors for 2026:

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