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Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Two-phase inclusions in sapphire, Sri Lanka
Colour zoning in ruby from Mong-Shu, Burma
Stress fissure («sun spangle») in baltic amber
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Bubbles and swirls in moldavite (natural glass)
Inclusions of hematite in feldspar (sunstone), India
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
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