Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusion of apatite in ruby from Tanzania
Two-phase inclusion in amethyst, Brazil
Fluid inclusions in quartz with bituminous daughter minerals, China
Structure in a healing fissure in topaz from Brazil
Bubbles and swirls in moldavite (natural glass)
Spinel crystal in dolomite marble, Burma
Inclusions of hematite in aquamarine, Tanzania

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