Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil

Fluid inclusions in quartz with bituminous daughter minerals, China

Spinel crystal in dolomite marble, Burma

Two-phase inclusions in sapphire, Sri Lanka

Bubbles and swirls in moldavite (natural glass)

Inclusions of gilalite aggregates in rock crystal from Brazil

Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania

Agate from Reichweiler, Germany

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