Colour zoning in ruby from Mong-Shu, Burma
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Two-phase inclusions in sapphire, Sri Lanka
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Two-phase inclusion in amethyst, Brazil
Two-phase inclusions in tourmaline from Namibia
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Fire opal, Mexico

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Save the date: SGG/SSG Zentraltagung 2026

21.06. - 23.06.2026

Deltapark Vitalresort, Gwatt bei Thun

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