Colour zoning in ruby from Mong-Shu, Burma
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of hematite in aquamarine, Tanzania
Inclusion of apatite in ruby from Tanzania
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of hematite in feldspar (sunstone), India

Contatti

Società Gemmologica Svizzera
Segretariato : Willy Bieri

c/o Willy Bieri, Feldgass 34, 6170 Schüpfheim

T. +41 78 696 19 81
E. nfgmmlgch