Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Two-phase inclusions in sapphire, Sri Lanka
Inclusion of apatite in ruby from Tanzania
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Inclusions of gilalite aggregates in rock crystal from Brazil
Dumortierite in rock crystal, Brazil, polarised light
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Twin-crystal of chrysoberyl

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