Midge included in amber from the Baltic coast, polarised light
Two-phase inclusions in tourmaline from Namibia
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Inclusions of gilalite aggregates in rock crystal from Brazil
Two-phase inclusions in sapphire, Sri Lanka
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Natural etching structure on a crystal face of diamond (trigons), polarised light
Stress fissure («sun spangle») in baltic amber

Contatti

Società Gemmologica Svizzera
Segretariato : Willy Bieri

c/o Willy Bieri, Feldgass 34, 6170 Schüpfheim

T. +41 78 696 19 81
E. nfgmmlgch