Two-phase inclusions in sapphire, Sri Lanka

Inclusions of hematite in feldspar (sunstone), India

Colour zoning in ruby from Mong-Shu, Burma

Fire opal, Mexico

Midge included in amber from the Baltic coast, polarised light

Dumortierite in rock crystal, Brazil, polarised light

Agate from Reichweiler, Germany

Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers

Links

Associazione Italiana Gemmologi

Deutsche Gemmologische Gesellschaft

Federation of European Education in Gemmology

Gemological Institute of America GIA

Gemmological Association of Great Britain

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

Hong Kong Jewellery & Watch Fair

Sainte-Marie aux Mines

Tucson Gem & Jewelry Show

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