Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Partially etched diamond crystal
Partially etched diamond crystal
Spinel crystal in dolomite marble, Burma
Spinel crystal in dolomite marble, Burma
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Two-phase inclusions in tourmaline from Namibia
Two-phase inclusions in tourmaline from Namibia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Dumortierite in rock crystal, Brazil, polarised light
Dumortierite in rock crystal, Brazil, polarised light
Midge included in amber from the Baltic coast, polarised light
Midge included in amber from the Baltic coast, polarised light
 
 

Contact

Swiss Gemmological Society
Secretary: Antoinette Starkey
T. +41 79 549 7689
E. nfgmmlgch