Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Midge included in amber from the Baltic coast, polarised light
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Twin-crystal of chrysoberyl
Structure in a healing fissure in topaz from Brazil
Natural etching structure on a crystal face of diamond (trigons), polarised light
Partially etched diamond crystal
Inclusion of apatite in ruby from Tanzania


Societé Suisse de Gemmologie
Sekretariat: Iva Pavic

c/o Iva Pavic, Heerenschürlistrasse 4, 8051 Zürich

T. +41 78 720 98 54
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