Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Stress fissure («sun spangle») in baltic amber
Inclusion of apatite in ruby from Tanzania
Fluid inclusions in quartz with bituminous daughter minerals, China
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Two-phase inclusions in sapphire, Sri Lanka
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Contact

Swiss Gemmological Society
Secretary: Willy Bieri

c/o Willy Bieri, Feldgass 34, 6170 Schüpfheim

T. +41 78 696 19 81
E. nfgmmlgch