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Inclusions of hematite in feldspar (sunstone), India
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Agate from Anzi, Maroc
Spinel crystal in dolomite marble, Burma
Fluid inclusions in quartz with bituminous daughter minerals, China
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania

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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