Fluid inclusions in quartz with bituminous daughter minerals, China
Twin-crystal of chrysoberyl
Inclusions of hematite in feldspar (sunstone), India
Two-phase inclusions in sapphire, Sri Lanka
Inclusion of apatite in ruby from Tanzania
Fire opal, Mexico
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Structure in a healing fissure in topaz from Brazil


Societé Suisse de Gemmologie
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