Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Stress fissure («sun spangle») in baltic amber
Inclusions of hematite in aquamarine, Tanzania
Two-phase inclusions in sapphire, Sri Lanka
Dendrites in agate
Bubbles and swirls in moldavite (natural glass)
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Two-Phase inclusions and rutile needles in rock crystal from Brazil

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