Twin-crystal of chrysoberyl
Partially etched diamond crystal
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Fluid inclusions in quartz with bituminous daughter minerals, China
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Stress fissure («sun spangle») in baltic amber
Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusions of hematite in aquamarine, Tanzania
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