Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Structure in a healing fissure in topaz from Brazil
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Fluid inclusions in quartz with bituminous daughter minerals, China
Dumortierite in rock crystal, Brazil, polarised light
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Fire opal, Mexico
Two-phase inclusions in sapphire, Sri Lanka

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Save the date: Zentraltagung in Meisterschwanden 11. bis 13. Juni 2023


(Fotos: Fotograf/in Naturhistorisches Museum Bern)