Dumortierite in rock crystal, Brazil, polarised light
Dumortierite in rock crystal, Brazil, polarised light
Bubbles and swirls in moldavite (natural glass)
Bubbles and swirls in moldavite (natural glass)
Dendrites in agate
Dendrites in agate
Two-phase inclusion in amethyst, Brazil
Two-phase inclusion in amethyst, Brazil
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
 
 

Contatti

Società Gemmologica Svizzera
Segretariato : Antoinette Starkey
T. +41 22 735 22 66
E. nfgmmlgch