Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Inclusions of hematite in feldspar (sunstone), India
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Two-phase inclusion in amethyst, Brazil
Inclusions of hematite in aquamarine, Tanzania
Midge included in amber from the Baltic coast, polarised light
Two-phase inclusions in sapphire, Sri Lanka
Structure in a healing fissure in topaz from Brazil

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