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Schweizerische Gemmologische Gesellschaft
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Stress fissure («sun spangle») in baltic amber
Two-phase inclusion in amethyst, Brazil
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Fluid inclusions in quartz with bituminous daughter minerals, China
«Red fox agate» from Patagonia, Argentina
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Fire opal, Mexico
Dendrites in agate

Links

Associazione Italiana Gemmologi
Deutsche Gemmologische Gesellschaft
GRS GemResearch Swisslab AG
Federation of European Education in Gemmology
Gemological Institute of America GIA
Gemmological Association of Great Britain
Schule für Gestaltung Zürich
 
 
The World Jewellery Confederation CIBJO
Zentralverband Schweizerischer Goldschmiede und Uhrenfachgeschäfte VSGU
 
 
Gübelin Gem Lab
Gübelin Akademie
Schweizerisches Gemmologisches Institut SSEF
 
 
Goldor Magazin für Edelmetalle, Schmuck, Uhren und Edelsteine
Portal der Uhren- und Schmuckbranche
 
 
Baselworld
Hong Kong Jewellery & Watch Fair
Sainte-Marie aux Mines
Tucson Gem & Jewelry Show
 
 
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