Fire opal, Mexico
Fire opal, Mexico
Inclusions of hematite in aquamarine, Tanzania
Inclusions of hematite in aquamarine, Tanzania
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Stress fissure («sun spangle») in baltic amber
Stress fissure («sun spangle») in baltic amber
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
 
 

Contatti

Società Gemmologica Svizzera
Segretariato : Antoinette Starkey
T. +41 79 549 7689
E. nfgmmlgch