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Twin-crystal of chrysoberyl
Agate from Anzi, Maroc
Spinel crystal in dolomite marble, Burma
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of hematite in feldspar (sunstone), India
Agate from Reichweiler, Germany
Stress fissure («sun spangle») in baltic amber
Fluid inclusions in quartz with bituminous daughter minerals, China

Current

Save the date: SGS Central Conference 2027:

24-25 May 2027
Villars-sur-Ollon (1884)

Seehotel Wilerbad, Wilen am Sarnersee
 
 
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© SGG/SSG 2026

 

Our sponsors for 2026:

 
 
 
 
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