Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Inclusions of hematite in feldspar (sunstone), India
Natural etching structure on a crystal face of diamond (trigons), polarised light
Inclusion of apatite in ruby from Tanzania
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Two-phase inclusions in sapphire, Sri Lanka
Two-phase inclusion in amethyst, Brazil
Fire opal, Mexico

Contact

Societé Suisse de Gemmologie
Sekretariat: Willy Bieri

c/o Willy Bieri, Feldgass 34, 6170 Schüpfheim

T. +41 78 696 19 81
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