Colour zoning in ruby from Mong-Shu, Burma
Fluid inclusions in quartz with bituminous daughter minerals, China
Partially etched diamond crystal
Midge included in amber from the Baltic coast, polarised light
Inclusion of apatite in ruby from Tanzania
Inclusions of gilalite aggregates in rock crystal from Brazil
Dumortierite in rock crystal, Brazil, polarised light
Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Kontakt

Schweizerische Gemmologische Gesellschaft
Sekretariat: Willy Bieri

c/o Willy Bieri, Feldgass 34, 6170 Schüpfheim

T. +41 78 696 19 81
E. nfgmmlgch