Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of hematite in feldspar (sunstone), India
Dumortierite in rock crystal, Brazil, polarised light
Two-phase inclusion in amethyst, Brazil
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusions of hematite in aquamarine, Tanzania
Colour zoning in ruby from Mong-Shu, Burma

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