«Red fox agate» from Patagonia, Argentina
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Two-phase inclusions in sapphire, Sri Lanka
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of hematite in feldspar (sunstone), India
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Two-phase inclusion in amethyst, Brazil
Fire opal, Mexico

Contact

Swiss Gemmological Society
Secretary: Willy Bieri

c/o Willy Bieri, Feldgass 34, 6170 Schüpfheim

T. +41 78 696 19 81
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