Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Inclusions of chrysotile fibres in demantoide garnet from Ural Mountains, Russia
Inclusions of hematite in aquamarine, Tanzania
Dumortierite in rock crystal, Brazil, polarised light
Agate from Anzi, Maroc
Two-phase inclusions in sapphire, Sri Lanka
Dendrites in agate
«Red fox agate» from Patagonia, Argentina

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