Fire opal, Mexico
Fluid inclusions in quartz with bituminous daughter minerals, China
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Inclusions of hematite in aquamarine, Tanzania
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Twin-crystal of chrysoberyl
Agate from Reichweiler, Germany
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan

Contatti

Società Gemmologica Svizzera
Segretariato : Willy Bieri

c/o Willy Bieri, Feldgass 34, 6170 Schüpfheim

T. +41 78 696 19 81
E. nfgmmlgch