Twin-crystal of chrysoberyl
Two-phase inclusions in sapphire, Sri Lanka
Two-phase inclusions in tourmaline from Namibia
Structure in a healing fissure in topaz from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Inclusions of hematite in aquamarine, Tanzania
Stress fissure («sun spangle») in baltic amber
Two-phase inclusion in amethyst, Brazil


Schweizerische Gemmologische Gesellschaft
Sekretariat: Iva Pavic

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